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JBL 4645
01-21-2008, 03:21 PM
Small but perfectly formed.




The new JBL home cinema


After trying two rooms for the JBL home cinema I found the one with the longest length to be a troublesome type and so I have settled on a smaller room.


One was the (chimney breast) that stuck out mid way in the room, by (18” depth) by (61” width), so I decided to abandon the room with the 15 foot length and go with a more easier room that will still need a few basic modifications done to it.

Flooring

I plan to make a secondary floor for the (JBL home cinema) to help with vibrations from LCR surrounds, sub bass extension and LFE.1.

Bass is fairly neutral due to the concrete flooring I guess, less (boom), just a natural sounding tone, unlike the last place, where it was a bit bass heavy at the back.

What you see here is only temporarily, this will nether be placed at the back of room around summertime, when I have the budget to buy a few professional 19” racks, Samson, studio racks.


http://i233.photobucket.com/albums/ee15/Evolution3417/NewJBLTHXhomecinema1.jpg

Room’s dimensions are

Length 11 feet10”

Width 10 feet 9”

Height 7 feet 7”

Yeah that’s small and I plan to shorten the height by has much as (2 ½ inches) with (2x2 timbre) and (15mm MDF or other) for the top part of the flooring. It shouldn’t cost no more than £80.00 the MDF will be the costly part of the material but not as much as the timbre beams as I only need around 6 or 7 spaced out evenly, over its length.

JBL control 1 fall in stand to attention!

Here’s my surround arsenal of battle troops ready to provide all the trills and spills on the surround channels.:D


http://i233.photobucket.com/albums/ee15/Evolution3417/NewJBLTHXhomecinema6.jpg




http://i233.photobucket.com/albums/ee15/Evolution3417/NewJBLTHXhomecinema5.jpg



http://i233.photobucket.com/albums/ee15/Evolution3417/NewJBLTHXhomecinema2.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/NewJBLTHXhomecinema4.jpg



http://i233.photobucket.com/albums/ee15/Evolution3417/NewJBLTHXhomecinema3.jpg

JBL control 5 I must say sound better in a room with concrete flooring, this helps to eliminate rattles and buzzing sounds! Not to mention sub bass and LFE.1 frequencies.


http://i233.photobucket.com/albums/ee15/Evolution3417/NewJBLTHXhomecinema7.jpg

Its kinder difficult to get a wide angle of the front because of the field of depth, the camera can only see what it can see, I can get very tight angles, but the sides are cropped off a bit.

Rubber matting

Now this would be great to place underneath the (timbre beams) or more rather the timber beams placed on top to add a little extra isolation.

Door

Door to the JBL home cinema room, will hath to be switched around to opened in the opposite direction, due to the raised flooring.

Platform

Horizontal platform for the front loudspeakers LCR will be placed 1” above the TV monitor and angled downwards, the length of the platform will extend the room’s width, depth of the platform will be the same as the JBL 4645 sub 18” to keep it flush.

Surrounds?

That is the question, what am I to do with 10 JBL control 1, now I can still place these on the sidewalls and rear wall and a few on the ceiling. I’m thinking I can set:

x2 for sidewall
x2 for centre back surround
x4 for height surround when available

And that’s pushing it, not quite to the original plan as I hoped and planed for, which was x16 I think?

Anyway all this, will be done over the course of the summertime no rush and there is a slim budget, as I have to mange other priorities that kinder remain on the top, but there will be a slow transformation.

Window

There’s only one in the JBL home cinema that will be blocked up with two layers of MDF cut to size. First off I’ll place a window blind in front, to give the illusion on the outside that I have the blinds closed for privacy, which isn’t far from the truth.

First layer of MDF will have a small bit of timber placed around the outside, then attached to the (window frame) securely. Next I’ll place a thin layer of (rock wool) inside it securely. Last off the second layer of MDF will be screwed to the other piece. This should reduce the traffic noise, as too what sound pressure level I have no data on this as for now, I’ll hath to wait until I get around to doing it.

I’ll take RTA readings with SPL db level metre, for a few hours note the average and the install the frame, after which I can take more readings and see if there’s been a reduced noise level, as the traffic around here is noisy during the night. Also there’s an airport nearby, Hurn international, with a few jets taking off and approaching as well.

The roof, now there’s nothing I can do about the roof, I think its (sound) so there’s no need to look that, unless I can hear (heavy rainfall) but since I’ve been here, I haven’t noticed it, with the past rainfall.

Additional absorption DIY

(Bass tarps) is out of the question, by the time I’ve stuck those in the room, I won’t have room to swing a cat around! So adsorption panels placed on the wall surfaces will suffice to add further adsorption.

(Rock wool) will be used for the panels, a soft layer placed onto a thin layer of MDF along with a (colourful fabric) for cosmetic appearance.

Interior decorative lighting system

Neon lighting will be the theme a basic red green and blue placed around the room in a hoarse shoe configuration that will be concealed near to the ceilings curve.

This will have a computerized controller when turned on will cycle though a sequence, on delay, dimming one colour and fading in the next colour, and so on.

12 volt neon is the simplest, the same type that is used for cars.

I don’t even have a seat to sit on, I’m sat here typing, sat on a JBL HT-1F and two pillows and my backside fills buggered LOL!:D

hjames
01-21-2008, 03:25 PM
Welcome back, Ashely!
Its good to see you post again! I knew you had moved and I was worried something had gone awry ..
Congratulations, and good luck fine tuning your new setup!

JBL 4645
01-21-2008, 07:11 PM
Cheers Heather

Nice to be back on the JBL site. There were a few hiccups, that might post in the off-topic, some rather embarrassing pictures.:o:

Tuning hardly the word, it’s going to take a few days or so, and even as it is now, that’s just to see how it’s going to sound in that small room.

JBL 4645
01-23-2008, 05:24 AM
Update on the project I popped into good ole Columbia timbre yard this morning to get some estimates on timber beams

2x2 was around of the top of my head 70p per metre sounds good.

15mm MDF around £17.00 pounds plus vat, a few bob. The sheets are 8 feet by 4 feet sounds wicked to me, this is going to work. Now all I need is to make it though a couple of months and then pop on down the road, and its just 20 minutes walking and only 3 minutes or less by car.

They said they can do free delivery, sound good because that’s going to weigh a bit or two all that bulk.

I guess they’ll be a few off-cuts with the MDF to fit into small parts of the flooring construction, so I’m also figuring I might need to spend somewhere in the region of.

Well I guess my prediction was little off by a small margin of around £80.00 for the whole lot, but if this can be done for less than a round figure of £100.00, that would be okay.

£68.00 4 sheets of MDF
£85.00 5 sheets of MDF

JBL 4645
01-26-2008, 10:28 AM
I’ve placed a Blue Neon light behind the sofa for chilling cool colour, in the mean time.

http://i233.photobucket.com/albums/ee15/Evolution3417/BlueNenolightbehindsofaJBLhomeci-2.jpg

http://i233.photobucket.com/albums/ee15/Evolution3417/BlueNenolightbehindsofaJBLhomeci-1.jpg

http://i233.photobucket.com/albums/ee15/Evolution3417/BlueNenolightbehindsofaJBLhomecinem.jpg

richluvsound
01-26-2008, 10:53 AM
Hi Ashley,

is that a concrete floor I see ? 15 mm is too thin . Try 25mm,Moisture resistant- get the timber yard to cut it into 1200 mm x 1200 mm squares for you . Get some of the underlay that is used when putting down laminate flooring and put down as much as you can afford..... Or just paint the floor with floor paint and spend your money on a nice thick rug. (google gumtree) its a great place for decent pre-owned house stuff. Keep the bass bin on the concrete and isolate it from everything else.

This just a suggestion based on my very limited understand. Andy oz is the boy for this stuff. Its how he feeds his family.

Good Luck.

Nice gaff BTW

Rich

JBL 4645
01-26-2008, 11:53 AM
Rich

I think it only takes the price up just a margin to 25mm MDF. I would like the whole flooring surface covered to (reduce reflectivity) carpet tiles I could have gotten hold of this week, but my budget was so poor I could only go for a fold up chair and the blue sofa.

I agree with the moisture issue, last thing I want is some of the boards (expanding and shrinking) due to temperature differences. So 25mm it is.

And would the difference of just less than 4” make a huge difference in the sound, I mean the height is only (7 foot 7”) but I need a little bit more feel from it with the relevantly affordable idea that I have in mind.

Gumtree I think I’ve come across that site in the past, isn’t it a forums site?


I’m not too great on mathematics, (1200mm x 1200mm) I’m sure that’s less then a few feet, and I’m sure you’re saying make it easy to fit each MDF panel down, if I understand you correctly?

I plan to countersink the boards then screw them into the timber beams below it.

As to where and how I should outfit the cabling for loudspeaker cables, I have a one of few simple ideas, use liquid nails and stick cable ducting above the skirting board, then channel the cables, though it to keep it, neat and tidy, and out of plan sight.

Thanks, thou I think you’re studio is bit more sound, for party’s in the evening, doubt I’d get away with that. :D

Donald
01-26-2008, 12:31 PM
All of this for a 20" TV? :)

richluvsound
01-26-2008, 03:36 PM
Ash,

1200 mm is just under 4' and a hell of a lot lighter to get in and out. You dont
want to start chucking full sheets around . measure your lift !!!!

I can get it trade if you need . I have an account with buildbase, see if there is one in your area and I'll see if I can help. Should be around £25 a sheet and 50 pence per cut.

Rich

boputnam
01-26-2008, 03:40 PM
All of this for a 20" TV? :)If JBL made TV's, Ashley have the LARGEST ONE! :p

johnaec
01-26-2008, 04:16 PM
If JBL made TV's, Ashley have the LARGEST ONE! :pErrr...this one?: http://www.jbl.com/home/products/product_detail.aspx?prod=CVPD50&CheckProduct=Y

John

boputnam
01-26-2008, 05:19 PM
That's BIG!

JBL 4645
01-30-2008, 09:45 AM
http://i233.photobucket.com/albums/ee15/Evolution3417/StarmanDVD1.jpg


LOL I guess Kevin O’Connell knows how to apply the right amount of low end to, buzz the audience.:D This had me starching my head for a few minutes? :banghead: I was looking at the right-hand side JBL control 5 while the sub bass extension was extending the low end from LCRS. The tone was down at around 40Hz.


http://i233.photobucket.com/albums/ee15/Evolution3417/StarmanDVD2.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/Starmanbuzzingat40HzJBLTHX2.jpg

The JBL control 5 wasn’t at fault, so where in the hell is coming from? I then muted all directional channels and LFE.1 leaving only the sub bass extension playing the low end from LCRS, and I could still hear this elusive buzzing sound, now this starting to get personal.


http://i233.photobucket.com/albums/ee15/Evolution3417/Starmanbuzzingat40HzJBLTHX4.jpg

After standing back and looking at the front, I then twigged onto where it was coming from, the (vent). As I approached it and while playing back the same sequence, over and over again, I placed my finger on the plastic vent cover, and like magic it disappeared.


http://i233.photobucket.com/albums/ee15/Evolution3417/Starmanbuzzingat40HzJBLTHX5.jpg

Well now all I need is something to place between the vent flaps to prevent the moving parts vibrating or buzzing. I cut a small piece of cardboard and folded it, and then placed it between one of the vent gaps, and then played the scene over again.


http://i233.photobucket.com/albums/ee15/Evolution3417/Starmanbuzzingat40HzJBLTHX6.jpg

Sigh, well that’s more like it yeah. So you just never can tell what is vibrating or buzzing In that special JBL room of yours and a little quick thinking can solve it in the simplest of ways. Now starman can hum and rumble without the buzzing.:)

Krunchy
01-30-2008, 10:43 AM
Hello Ashley!
Congrats on the new digs, glad to see that you are back.
Have fun setting up the place and getting yourself comfortable :).
(Dude you got a lot of gear, your HT must sound pretty amazing.)
Enjoy!

JBL 4645
01-30-2008, 12:16 PM
Hello Krunchy

Yes no worries thanks for asking. I was kinder thinking about the surround issue this afternoon on where to place all those JBL control 1 surrounds? I’m kinder feeling adventurous this evening and thou I’d like to go with plan A and place them along the wall surfaces, that option is still widely open.

I’m thinking I can still buy a few more JBL control 1 later on and place them on the side and rear wall. Combination and configuration layout of the surrounds can be as follows.

Option 1 Three on each side with four placed on the back part of the ceiling area.
Option 2 four on each side with two placed on the back part of ceiling area.

How will it sound in relation to the film, as some sound images hath to make sense. It wouldn’t make sense to me if I heard the Anakin Skywalker’s lightsaber coming from slightly above me from the centre back, would it?


http://i233.photobucket.com/albums/ee15/Evolution3417/StarWarsepisode2attackoftheclonesli.jpg

Okay since I haven’t played that film here as of yet, I’ll play the sound bite moment in sort jiffy, and see where I stand with surround placement and with a stroke of wit and luck, I might be able to get them fitted to the ceiling before the clock strikes 12, otherwise I’ll turn into a pumpkin.

Just kidding rushing results in injurers occurring, and I need to take this a step at a time, otherwise, I might end back up where I started from.

I’ll place one on the back part of the ceiling to start with and note the differences with Star Wars episode 2 Attack of the Clones.

Water sprinkler effect! There’s another cool film that has some good film mixing, Hollowman where the sound starts off at centre front then moves outwards with nice centre back moment that gets the attention! Water is trickling all around you with droplets of water landing on the solid floors in the underground facility.


Let’s go to work.:D
http://i233.photobucket.com/albums/ee15/Evolution3417/RESERVOIRDOGS.jpg

JBL 4645
01-30-2008, 01:50 PM
Here is an update as you can see that is one JBL control 1 so far fitted to the back part of the ceiling area, I’ve marked out where I want them on the back part with masking tape and using a blue pencil, to outline the JBL speaker support fitting, and the holes for the screws.

Now once I’ve gotten them all fitted which should be sometime very late. Also I have some (cable ducting) not sure if can get the cables concealed within it, by to night, but I’ll cut some up and use liquid nails to attach it to the ceiling, and corners.


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLcontrol1celingsurroundarrays1.jpg


I must say it does kinder work, as you can see; I’m kinder looking back, while one eye still focusing on the front screen action. I’ve only got the surrounds playing at the present time, with Star Wars episode 2 Attack of the Clones, while all the LCR and .1 are in mute mode.

Anyway back to the JBL control 1 surrounds installation. :)

JBL 4645
01-30-2008, 02:48 PM
Well I need to take a slight break due to heath, wares my arms out it does, gravity is a bitch on the arms, but it feels good. Who knows I might even sweat a few ounces of my bodyweight. :D


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLcontrol1celingsurroundarrays2.jpg

As you can see there are now three JBL control 1 fitted, so far so good on the sound, as I mellow with Star Wars episode 2 Attack of Clones. Note the two (centre back surrounds) and the first (left side ceiling surround) I only have 7 more to fit. :bouncy:

http://i233.photobucket.com/albums/ee15/Evolution3417/MWTMNcolumbo5.jpg
Oh, there's just one other thing.

I was jumping ahead of myself with the cable, wow I’m sweating on the back of the head here. I meant to say, the racks that I’ll be buying around summertime, or maybe sooner, summer the very least, well if the racks are going at the back, then I’d hath to fit the cable ducting last.

JBL 4645
01-30-2008, 07:15 PM
Two angles showing the surround view and it does kinder look unsightly, even I can admit to that. Looks like an interior decorating issue for a later date, with the light turned off I hardly notice it.

How does it sound so far? I ran a pink noise test to confirm that the tone was equal, via the Pioneer VSP-200 a few adjustments on the Marantz 1030 with a slight increase on volume.

All the surrounds are (wired in series) I’ll fit the last two up in the daytime, because now I’m shattered and need some sleep, it took around 1 hour to fit two surrounds at a time, I’ve viewed over a few best sound moments updates on how that sounded later on.


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLcontrol1celingsurroundarrays5.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLcontrol1celingsurroundarrays4.jpg

JBL 4645
01-31-2008, 12:40 PM
Well its all about trial and error so if I can fork out for an electric drill next week, I’m get some timber to place over the (rear and sidewalls) to easily fit the speaker brackets, rather then drilling 40 holes in the walls, I can get around this with three holes max per sidewall and four on the back wall to hold small thin piece of timber.

Horizontal placement would give me the maximum head turning affect that I’m looking for. Where they are at present is all wrong, and like I said its trial and error. However it worked in the cinema at UCI, maybe not to the fullest for stereo surround films, I remember Jurassic park in dts was major disappointment, because all that was done at the time was re-plugging of the surrounds, that have been used for monaural effects with Dolby stereo A and SR type soundtracks.

Later they fitted a new batch of surrounds, to the sidewalls and rear wall.

Anyway I plan to fit the surround fixing bracket at height of 67” and then angle the surrounds downwards.

So in the worlds of the Blues Brothers…:D


http://i233.photobucket.com/albums/ee15/Evolution3417/TheBluesBrothers1dontlikeit1.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/TheBluesBrothers1dontlikeit2.jpg

JBL 4645
01-31-2008, 01:22 PM
Well in the past 20 minutes I’ve removed the side JBL control 1 and I’ll stick them close to the sidewalls along with the centre back surround directional channels, until I get a sodden drill.

I must say I hate heights, I’m terrified of heights, standing a stool that slightly wobbles scares me to bits.

Oh well that’s 5 hours wasted last night that I won’t get back LOL.

I’ve got The X-Files fight the future (1999) playing at the moment as soon as I get the last two JBL control 1 down I’ll try a new experiment, just for temporary use that is, until I get a sodden drill.:banghead:

Hoerninger
01-31-2008, 03:25 PM
... standing a stool that slightly wobbles scares me to bits.

I feel with you ;) . What about a ladder? It is more secure, and it gives you a good feeling.
___________
Peter

JBL 4645
02-06-2008, 07:41 AM
Hi there, brought an electrical drill this morning from Wilkinson’s and a few pieces of 2x1 from Columbia timber yard.


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrearwa.jpg


Has you can see I’ve drilled and filled the hole with liquid nails and tapped in the wall plug, by around tomorrow the liquid nails would have hardened.


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-1.jpg



http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-2.jpg


Screwed up and secured. Well that’s the back part done, I’ve got two sides to do next, and oh that’s going to be fun. ]



http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-3.jpg


One JBL control 1 fitted. The wooden beam makes it easier to place the mounting bracket to the wood, rather than drilling dozens of holes into the wall.


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-4.jpg


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-5.jpg


Tightening up the nut, then it will be fitted to the mounting bracket and secularly tightened up.



http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-7.jpg

JBL 4645
02-06-2008, 07:45 AM
http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-8.jpg


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-9.jpg


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-10.jpg


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1centrebacksurroundrea-11.jpg

Yes I plan to hind the loudspeaker cable in some cable ducting that I’ll place above the wooden beam. Anyway I’ve got two more to do this afternoon and I’m very limited on screws for the wooden beam, but not for mounting the JBL control 1, plenty of that size to go around.

JBL 4645
02-06-2008, 04:06 PM
Due to one of the sidewalls I’ve had to put of the final assembly of the JBL Control 1 surrounds to the left-hand-sidewall till tomorrow morning when I can re-drill new holes.

The rear wall and right-hand-sidewall is okay, all was going smoothly and I was egger to drill new holes around 5:30pm this evening, but I thought I’d delay it till the morning.

More pictures to follow tomorrow.

I’m also thinking about getting long board for the front LCR, a platform that will allow the JBL control 5 to sit on. This will reduce close contact vibration with the TV with centre channel, and even thou the TV is sitting on top of the mighty huge JBL sub, colour remains intact, due to the large magnet structure, stock of luck I would say.

JBL 4645
02-06-2008, 05:04 PM
I couldn’t resist taken a few pictures, I’ve just fixed the JBL Control 1 right-hand-sidewall surrounds only moments ago.



http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1sidewallsurrounds1.jpg

Wide angle view of JBL control 1 surrounds.


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1rearwallsurrounds.jpg

Underside view of JBL control 1 centre back surrounds.


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1sidewallsurrounds2.jpg

Underside view of JBL control 1 right-hand-sidewall surrounds.

JBL 4645
02-07-2008, 07:46 AM
This phase of sidewall and rear wall installation is now complete and I like it. Next is to attach the cable ducting to tidy up the loudspeaker cables that powers the surrounds.


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1rightsidewall1.jpg

http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLcontrol1rightsidewall2.jpg

JBL 4645
02-15-2008, 02:44 PM
Since the idea or concept is still going to be “small” and since I started a comment in the room mode calculations thread, I thought I’d post the images here. Now you can see I have a (chimney breast) its 61” wide or 5 feet 1” if that helps. Now you can see a window on the side wall, that’s got to be blocked off with MDF.

You can also see the gap where the (chimney breast) ends. Now that needs to be addressed with some timber and MDF to make it one whole length. This now narrows the width of the middle part of the room by 8 feet 11” or 107” if that helps.

The back part of the room I wont touch I’ll leave it open has is, it’s the main front area with the matching JBL control 5 LCR that worries me, because of the opening at the front.

But surly the bass at the back of the room along with a few mid range and few high frequencies might have issues, but no worse than some cinemas that’ I’ve seen where there is a slight odd shape in one or two parts of it.

I want to get this done right given the slim poor man’s budget I’m on, even if this takes a year, I want to get the shape done right, or near within small degree.

Note the main window, now that really needs to be blocked up with a few layers of MDF to reduced as much audible traffic sound and other sound from the outside. I don’t care the window needs to be blocked.

First I’ll stick window blinds on the inside to give it the impression I’ve got the window blinds closed. Then layer it with MDF to reduce the sound level, as much as possible.

JBL 4645
02-15-2008, 03:59 PM
Matters have now increased to critical; I don’t know how to get around the left-hand-sidewall, which has the JBL control 1 surround placement. I’ve noticed if I where to place a JBL control 1 towards the or near the door, and no the door isn’t the issue, it’s the distance between the chimney breast, and the 18 ½ in slight depth.

Now I’d ether hath to power the JBL control 1 on the left-hand-sidewall with a stereo amplifier, rather then using it the other way around this way I can EQ the differences between the one that sticks out slight and the one that doesn’t.

That now means I’d have to buy at least 4 more Alesis RA300 and one RA500 for sub bass. Oh this is going to be slow very slow, I doubt this will be finished till next year??

JBL 4645
02-15-2008, 08:34 PM
Now this is want I like about the Empire Leicester square screen 1, the way the floor curves upwards and inwards across the front of the screen, stage area very nice on the eye when seated in front row.


http://i233.photobucket.com/albums/ee15/Evolution3417/EmpireLeicestersquarescreen1upfront.jpg

I’ve kinder done some measurements and thou I can only do this at a very narrow elevation, otherwise I’d be too high and the sub bass along with the LCR JBL fronts will be too close to the ceiling.

I’ll see what the guys at Columbia timbre think, I’d like that feature very much in the front, not sure at the moment about the [lights with coloured gels] I’ll think of something small and affordable.

JBL 4645
02-15-2008, 09:25 PM
http://i233.photobucket.com/albums/ee15/Evolution3417/JBLideaaroundthedoorarea.jpg

Got it I’ve been keeping my mind active tonight, and I’ve hatched out this idea around the door entrance.

By placing some timbre to the walls and extending a short length across the door area, with MDF maybe something different to make it look as if its part of the room.

Rack placement everything except the amplifiers, those will be placed in the bedroom.

So I’ll might be able to fit a professional rack 19”, you know one of those Samson racks, into the space and with the flush look should look neat, hopefully.

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=25804&stc=1&d=1181967118

JBL 4645
02-16-2008, 12:15 PM
I’m thinking getting true cinema seating because the reason is I get deeply depressed :( sitting in slouching sofa or even those propose made potato seats for home theatre in the US, they look, repulsive looking.:barf:

So professional cinema seating it is used or new I don’t care, but the price has got to be right, one cinema seating as been around long before home cinema not to mention television. Cinema seating is the art of comport and thou I would like a [rocker seat] kinder like the ones used at the Empire Leicester square in screen 1, new or used doesn’t really matter.


http://i233.photobucket.com/albums/ee15/Evolution3417/EmpireLeicestersquarescreenseatrock.jpg

One such site I found in Google image, well I can tell that’s in the USA, no matter I’ll keep fishing around tonight and give London a call Monday to get some information, I need to know where the top cinema UK cinema seating suppliers are in the United Kingdom.

http://www.preferred-seating.com/html/Auditorium4.html (http://www.preferred-seating.com/html/Auditorium4.html)

I like this video with true cinema seating no imitations no couch slouching potato seats seen here.http://www.audioheritage.org/vbulletin/images/icons/icon14.gif

Home Theater Seating, real movie chairs
http://www.youtube.com/watch?v=KcCwImkU_Pw (http://www.youtube.com/watch?v=KcCwImkU_Pw)

http://www.youtube.com/watch?v=XpwhOworwO0 (http://www.youtube.com/watch?v=XpwhOworwO0)

JBL 4645
02-16-2008, 01:18 PM
Doing some more re-thinking this evening does anyone know the cost of the framing for rack mounting because I might have a plan C solution for the living room. I’ve measured one item which has the maximum depth which is my Pioneer laserdisc player CLD-1750 same goes with Pioneer CLD-2950.

Depth of the wall area is 18” depth of Pioneer laserdisc player CLD-1750 with RCA phones attached is 17 ½ and that’s extremely tight. All the other equipment is well under that mounting depth.

I figure I could save a few Bob, if I had the mounting racks.

JBL 4645
02-16-2008, 01:27 PM
I guess what might be everyone’s mind is? Is the name of the home cinema, well that’s a secret for now I already have a name for it. ;)

Robh3606
02-17-2008, 08:28 AM
Doing some more re-thinking this evening does anyone know the cost of the framing for rack mounting

Hello 4645

Do you mean the L bars that go into the cabinets?? They are very inexpensive. The cabinet is what's going to cost you. It's real easy to convert cabinets if they can accomodate the 19" rack gear.

Rob:)

http://www.partsexpress.com/webpage.cfm?webpage_id=3&CAT_ID=46&ObjectGroup_ID=806

JBL 4645
02-17-2008, 08:52 AM
Hello 4645

Do you mean the L bars that go into the cabinets?? They are very inexpensive. The cabinet is what's going to cost you. It's real easy to convert cabinets if they can accomodate the 19" rack gear.

Rob:)

http://www.partsexpress.com/webpage.cfm?webpage_id=3&CAT_ID=46&ObjectGroup_ID=806


Yes that’s what I’ll need do they come in different lengths or am going to need a hacksaw to cut them to length size.

Thanks mate. :)

Well that’s in the US isn’t parts express, so I’ll call digital village in the morning and see if they have L rack plates in stock for next day delivery.

johnaec
02-17-2008, 09:02 AM
...do they come in different lengths or am going to need a hacksaw to cut them to length size?You'll see they have various lengths available there.

Be aware if you haven't used rack rail before that the equipment mounting holes are not evenly spaced - this is especially important if you're cutting to custom lengths! The holes are spaced based on standard increments, but the holes that are top/bottom to each piece of equipment are closer together. (Easier to see in person than explain with words... :( ).

John

JBL 4645
02-17-2008, 09:14 AM
You'll see they have various lengths available there.

Be aware if you haven't used rack rail before that the equipment mounting holes are not evenly spaced - this is especially important if you're cutting to custom lengths! The holes are spaced based on standard increments, but the holes that are top/bottom to each piece of equipment are closer together. (Easier to see in person than explain with words... :( ).

John

Gotcha evenly spaced, also can you get parts to fit onto devices that don’t have the holes and modify them. Yes that may sound brutal, drilling into a DVD player on the side and laserdisc player to fit the brackets, maybe that’s not a good idea, or may be it is.

Thanks mate.:)

johnaec
02-17-2008, 09:29 AM
...also can you get parts to fit onto devices that don’t have the holes and modify them?I've been know to do that. Those parts are called "rack ears" and tons of different ones are available from all kinds of manufacturers. They have the correct rack holes/slots already in them - you just have to figure out how to mount them to the components...

John

JBL 4645
02-17-2008, 09:39 AM
I've been know to do that. Those parts are called "rack ears" and tons of different ones are available from all kinds of manufacturers. They have the correct rack holes/slots already in them - you just have to figure out how to mount them to the components...

John

LOL so any item that is sold on Ebay that has [Rack Ears] I’ll know who to contact if the unit breaks down, just kidding. :D

Right so I’ll ask digital village in the morning if they also have [Rack Ears] I like the sound of that.


Thanks mate that's a real bouns.:)

JBL 4645
02-18-2008, 04:36 AM
Well, well my, my, my this took a bit of searching around this morning a few miss and hits and then I was pointed into the direction of [Studio Spares] UK where they have different framing.

I’ve ordered x2 24U framing and nuts screws and washes and plastic washers to isolate it from the framing. That should do it now, but I still need to get timbre and [MDF sheet a thin type] to place around the whole assembly to give it a flash and pucker look.

24U framing L rack
http://www.studiospares.com/Product.aspx?code=900076 (http://www.studiospares.com/Product.aspx?code=900076)

Thanks to Rob and John, :) I couldn’t get straight answer for the [Rack Ears] because it needs to be [1 to 1] if I want to drill holes into the sides of the Pioneer CLD-1750 laserdisc player and fix that into the framing neatly. Well I’m sure the problem will present itself sooner or later, I’ll figure a way around that.

JBL 4645
02-18-2008, 05:59 AM
http://i174.photobucket.com/albums/w118/Brainstorm3417/ODEONHILLEPREMIERCHAIR002.jpg

I’ve been phoning around this morning for true cinema seating and have got a deal or has Noel Edmonds, would say “deal or no deal” DEAL YES!
:applaud::p:)

£10.00 per cinema seating for [Odeon Hille Premiere seating black] has seen in the picture here. I’ve ordered x6 plus I’ll have to wait until there delivery van is in the area to make it easy, the seats are all ready assembled that’s why I need to wait cost for delivery could be anywhere from £80.00 to £100.00 pounds.

So if anyone else on the forums would like to buy more of these seats I can pm you and I’ll forward the contact because they have loads of these will sadly end up in skip and that would be a shame.:(

johnaec
02-18-2008, 07:14 AM
If you don't want to mount rack ears to your components, rack shelves are also available. You mount the shelves in your rack, and just sit the components on them: http://cableorganizer.com/computer-cabinets/rack-shelves.html

John

JBL 4645
02-18-2008, 08:32 AM
If you don't want to mount rack ears to your components, rack shelves are also available. You mount the shelves in your rack, and just sit the components on them: http://cableorganizer.com/computer-cabinets/rack-shelves.html

John


Hello there John good afternoon.

I understand now. It was all to alien to me early on this morning, [rack shelves] because the guy on the phone was trying to explain that to me, but there wasn’t any visual images to see and I was a little unsure at the time.

But now I understand where you’re coming from. Rack shelves would be a grand idea to place the place the
x2 laserdisc players and the few other items like
x 3DVD
x1 Hi-Fi stereo VCR
x1Kenwood KRF-X9050D THX select AVR
x1 Yamaha DSR-70Pro-logic processor
x1 Yamaha DSP-100

While the rest is fitted to the racking
DCX2496
BFQ2496

And future DCX2496 x2 plus x5 DEQ2496

JBL 4645
02-18-2008, 08:42 AM
My dad just popped around to drop of chair no its not a cinema chair, a chair that was better and stronger than the one before which LOL broke in half this afternoon after I just made a deal on the cinema seat the darn thing collapsed. And I laughed my ass off I just thought that was funniest thing that’s happened today.

I showed my dad this $6million dollar caper and even my dad said it looked fake when I pointed out the image of that Rat film was pasted on the screen because it had lighting turned up full and it would wash the image out, he still thought it was fake LOL. :D

JBL 4645
02-19-2008, 08:03 AM
Well its turned up but I think I need two more of the same for the back don’t I, providing of course I want to use rack trays that slide outwards. I’ve been viewing the studio spares catalogue that arrived early this morning and saw the cost of rack trays around £22.00 pounds that isn’t too bad providing I, don’t go nuts and buy a whole bunch of sliding trays or I can then just buy a normal tray.

Other than that I’m pleased with the look of the racking plates, very pleased. :) In the meantime I’ll keep the racking plates in the cardboard tube safely until I’ve got the timber frame fitted up along with flash virtual piece of thin MDF boarding.



http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLracking1.jpg


http://i232.photobucket.com/albums/ee18/DemolitionMan3417/JBLracking2.jpg

JBL 4645
02-19-2008, 08:22 AM
Well it’s a different feeling when you get a product in your hands and yes I’m going to need at least two more of the same product for the front and four more of the same for the back otherwise I’m buggered to start this project off in the large room.

Nothing well start happen for at least a few more weeks until I’m ready to start placing down a flooring and I want to get that done within 24 hours even if it means working 24 hours myself around the clock, I’ve been known for staying up 4 days in a row before.:snore::D

JBL 4645
02-20-2008, 06:03 AM
I’m off down the road in jiffy in moment and get the cheapest know to man quote figure on the 2x2 timbre and over layering which might not turn out to be MDF I’ll have a good look over at what there is and see if it will adapt to the project under the tightest know budgets known to mankind LOL, I’m really a tight a££ if that helps.

hjames
02-20-2008, 06:25 AM
I’m off down the road in jiffy in moment and get the cheapest know to man quote figure on the 2x2 timbre and over layering which might not turn out to be MDF I’ll have a good look over at what there is and see if it will adapt to the project under the tightest know budgets known to mankind LOL, I’m really a tight a££ if that helps.

be sure its fire retardant -
you don't want to find yourself in the fiery furnace if things go awry ...

JBL 4645
02-20-2008, 07:06 AM
be sure its fire retardant -
you don't want to find yourself in the fiery furnace if things go awry ...

Thanks for brining that to my attention! I’ll point that question towards them but I find it highly unlikely one I don’t smoke and two no smoking in this auditorium LOL.

Anyway measured it out and took a few digital images for a visual representation of the room so they can get a rough idea I want sizes need to be cut, so I’m off down the road now should be back in an hour or two.

hjames
02-20-2008, 07:18 AM
Thanks for brining that to my attention! I’ll point that question towards them but I find it highly unlikely one I don’t smoke and two no smoking in this auditorium LOL.


Its not the smoking you have to worry about - you have a lot of electrical equipment running in that room, don't know if you use extension cords or 3 wire power strips or whatever - but if the grid heats up it could cause a fire.

Smokers not required.

JBL 4645
02-20-2008, 08:27 AM
Its not the smoking you have to worry about - you have a lot of electrical equipment running in that room, don't know if you use extension cords or 3 wire power strips or whatever - but if the grid heats up it could cause a fire.

Smokers not required.

Oh, yeah your right well I don’t have any rats crawling around here Heather so unless one chews :D it’s way though a mains power line, well I guess that does make things complicated.:(

Well I present my plan D to Columbia timbre and they couldn’t make heads or tails of? :dont-know

Oh, dear where do I stand now? :( Well I was then pointed into the direction of chirpy someone who can build this and hopeful within the tight budget plan. So a local chap from Poole will be popping on over tomorrow to have a look and size it up, because even if I have measured it out, they still like to measure it for themselves, just to me sure.;)

I’ve been looking at the chap’s portfolio and it looks great with what he can build out of wood, from rocking chairs to rocking-hoarse to grandfather-clocks anything that’s wood.
:applaud:

JBL 4645
02-20-2008, 09:03 AM
Here are few rough idea plans that I drew its not too complicated well, maybe?


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemaplan1.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemaplan2.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemaplan3.jpg

JBL 4645
02-21-2008, 05:05 AM
I’ve just spoken to the chap who has looked at the room and the design issue and he’ll size-up the materials and the cost for doing the sub-flooring and different quotes for the simple box frame that will house the 19” racks as well as additional small materials that need curved cuttings for the curved inward stage as well as curving upwards, within small dimensions.

Take a few days until I get a call from him. I also need to chase-up to see if the paper-work is ready for the chairs, as I left a message yesterday for early call-back on the up-date.

JBL 4645
04-16-2008, 01:21 PM
Slightly changed room’s while being parked directly on top adjacent bedrooms.

My new neighbour said it was vibrating the concrete floor two floors below! Well at least I know it’s performing like it’s suppose to. I think that must have been Crimson Tide (PCM) dts 5.1 THX laserdisc.

So I hope the new room will minimize the low end to small degree.

I’ve applied cable truncking along, above the picture framing around the room to conceal the loudspeaker cables for the surrounds.


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom1.jpg


The surrounds are all, wired in series.


Later on I’ll fit the front panel of the cable truncking, onto the fitting.


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom2.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom3.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom4.jpg



I need to really block the windows up to reduce outside sound and stray light from disruption.


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom5.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom6.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom7.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom8.jpg


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom9.jpg


The room is bit lively with slight reverb that needs to be dealt with. It’s kinder hard to tell if the sub bass extension is deeper or more controlled than the other room.


LFE.1 I haven’t tested it out, yet. I’m running, laserdisc transfer DVD-RW Star Trek the Motion Picture (1979) Dolby stereo 4:2:4 which as surfactant bass and sub bass lows.


The fronts LCR seem to be performing with good stereo front and dialogue panning is smooth over a narrow (7 feet 6”) to the present listening position, which is 9 feet.


Seating is placed within the sidewall surrounds which are placed high up at (6 feet 7”). The angle is as step as they can go; I’d guess its slightly less than 45°.


The angle of the surrounds is 55” to the listener’s ears.


Also haven’t tried out stereo surrounds with centre back as of yet, maybe later on. Then I can see how well it images around the room, while the monaural matrix surrounds give good envelopment when “Veger’s” lighting thunders around, Enterprise.


Has Enterprise goes though an opening into another part of Veger complex, its accompanied by a nice smooth low end on the JBL 4645 that is in SW re-mix which sends all the low end to subwoofer output.


I normal have this in the OFF setting that only comes active with LFE.1 (Dolby / dts 5.1) sources.

I still have four more JBL control 1 fitted to the ceiling in the other room that need to be taken down and fitted somewhere into the large room.

boputnam
04-17-2008, 12:18 PM
The surrounds are all, wired in series.Ashley, dood, you are losing my mind...

How many "surrounds" do you have connected in series - what is the resultant impedance the amp is seeing...?

JBL 4645
04-17-2008, 01:34 PM
Ashley, dood, you are losing my mind...

How many "surrounds" do you have connected in series - what is the resultant impedance the amp is seeing...?

Oh, hello there bop. Hopefully 4ohms! If I wired the same bundle that I use for the sides in parallel then I would hear a nasty popping crackling sound, at certain frequencies, under certain levels.

So there is no crackle and pop around here, even with hard soundtracks like Terminator 3 (2003).

The Marantz 1030 has an impedance rage from 4 to 16 ohms? It doesn’t state this on the back, unlike the Marantz 1050 which states on the back 4 to 16 ohms.

The control 1 are 8 ohms as stated on the box, thou I thought the control 1 was 4 ohm rating. There are several different types of, JBL control 1, mine are the silver colour.

I’ve stuck a few drapes up at the front, thou I didn’t have enough to go around the whole room, and besides they look very tacky. LOL


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom10.jpg

I’ve kinder muted the LCR and sub bass extension for LCR and LFE.1 while listening to the surrounds with centre back activated, to give me an idea of what else I can experiment with in this room.

I don’t know, I’m not certain if I want to fix the matrix overhead surrounds to the ceiling because the rest of the surrounds are fairly close to the ceiling, within 14”.

I might add a few more sidewall surrounds and few more for the back, which brings me to 10, unless I can figure a way around to use the matrix rear surround on the Pioneer VSP-200.

I’m also presently looking at far rear side corners where some surrounds can be fitted to. I’ll have to cut some timber and drill the wall and wall-plug it with liquid nails and then screw-up, two JBL control1 within 30” distance from each other.

cooky1257
04-17-2008, 02:12 PM
Before I added any more surrounds I'd get a bigger telly, oh and a lampshade:D

I use 6x control 1a's which are 6 ohm in my ht setup mated to a Paradigm 1000sub all driven by a Marantz 5400-it's a small room tho'

JBL 4645
04-17-2008, 03:24 PM
Before I added any more surrounds I'd get a bigger telly, oh and a lampshade:D

I use 6x control 1a's which are 6 ohm in my ht setup mated to a Paradigm 1000sub all driven by a Marantz 5400-it's a small room tho'

The lampshade isn’t a problem I can use the one that was used in the other room. It shouldn’t take me, no more than 10 minutes, before you see a transformation.

As for the CRT its saying put because I don’t like the look of flat screens, the image lags really bad on some models and I don’t have the money to spend on a flat screen and the time going around all the different stores to see which one looks best for both laserdisc DVD and this HD thingy.

A video projector would be a big yes, but again I don’t have the money for such a model, even an affordable model below £900.00.

Let’s see thread of your set-up or you can place it here. Oh LOL you’ve been reading too many home theatre magazines, :D we call it home cinema in the UK, HT is the U.S. term. But why split hairs, I know what you, mean.

Now I’ll going and get that lampshade!:D

JBL 4645
04-17-2008, 03:36 PM
One lampshade now installed tacky but it will have to do for now.:D


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom11.jpg

http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom12.jpg

JBL 4645
04-21-2008, 01:35 PM
Changed the fronts LCR back with a mixture of JBL control 5 and control 1 as to with the crossover frequency.

LCR
LF 40Hz Butterworth 18db 521Hz Butterworth 18db

LCR
Mid range to high
510Hz no crossover filter used on the highs leave that to the THX re-eq to address that part.

The control 1 will sound loud on the mid to high range.


http://i233.photobucket.com/albums/ee15/Evolution3417/JBLhomecinemalargeroom14.jpg

JBL 4645
05-08-2008, 03:06 PM
Hello all, just bloody fine weather we’re having here in England at the moment, hope the pissing raining keeps to the night time to make the dry air smell fresh in the morning.

Anyway I’ve downloaded a free software package from (Home Theater Shack) site dedicated or one part, of it to the (Behringer FBQ2496) and I’ve managed to get a few issues sorted out on the JBL 4645.

One is this took a few hours to get the whole thing, well almost I need (MIDI) lead connection between the pc and (Behringer FBQ2496) to make this fully user-friendly.

So far these are test results.

Test done at 10 feet to the present listening area where the sofa is, ECM8000 was positioned behind and slightly over the back of the sofa, at ear height.

What I have done here is taken three frequency sweeps with (REW) Room EQ Wizard, the first one is with all three ports on JBL4645 18” sub as is.

http://i262.photobucket.com/albums/ii100/BourneUltimatum3417/RTAreadingwithREWfirstsweeptest.jpg

Second frequency sweep is with one port hole plugged up, and as you can see there is mild difference between the, first frequency sweep.

http://i262.photobucket.com/albums/ii100/BourneUltimatum3417/RTAreadingwithREWsecondsweeptest.jpg

Third frequency sweep is with two port holes plugged up, and as you can see again there is difference.

http://i262.photobucket.com/albums/ii100/BourneUltimatum3417/RTAreadingwithREWthirdsweeptest.jpg


I’ve done a few more tests as well as a few guess works on the signal level calibration on the (FBQ2496). I took a reading with RTA my standard basic RTA and placed the ECM8000 1m away from the JBL sub and played some wideband pink noise from the dts calibration disc track 14 and slotted in a few filters where I saw the peak.

Filters used are
25.1Hz
+2db
0.75

40.3Hz
-23db
0.75

Now is this right is it wrong, it all seems to be trail and error and it kinder looks right to me, so far.

The first sweep wasn’t showing up to well, according to REW (Room EQ Wizard) and I forgot to add a little amplifier power, so I did a second frequency sweep test.

Final frequency sweep was with ECM8000 placed back at seating position.

First frequency sweep test

http://i262.photobucket.com/albums/ii100/BourneUltimatum3417/RTAreadingwithREWfourthsweeptestnew.jpg

Second frequency sweep test

http://i262.photobucket.com/albums/ii100/BourneUltimatum3417/RTAreadingwithREWfifthsweeptest.jpg

Cheers.:)

boputnam
05-08-2008, 07:14 PM
Ashley, I have no idea what you are trying to do.

Questions:

- what is your crossover frequency (HPF) for the sub? Why is there all that higher frequency stuff there, the stuff above 90Hz...?

- start with no filters. Run the sub alone, with the HPF at something like 90Hz.

- make sure no other speakers are running.

JBL 4645
05-09-2008, 04:47 AM
Morning bop

I almost forgot about? The JBL 4645 doesn’t run with crossover as its direct link between the LFE.1 and the LFE.1 has crossover drop off at 120Hz. Or more rather it’s (restricted to 120Hz max!) The lowest it starts off from is, 10Hz to 120Hz.

I know that is nether here or there and it should have crossover fixed to regardless, but I’m fresh out of crossovers and I haven’t had any issues with it in the 10 years now.

When I first had it up and running it was running with basic 100Hz crossover via my Yamaha DSR-70Pro back around 1998. and when I went digital with dts around the same year it would have only been getting signals as low as they go to has high as they can go.

I always turn off or (mute) other channels when doing independent frequency sweep or wideband pink noise to prevent overlapping from other channels.

I think I ran the frequency sweep yesterday from 20Hz to 120Hz for the JBL 4645 I could run the sweep test again. And moving the microphone around all the time is bothering me. I’d sooner have a few of the same ECM8000 microphone and patch several into mixer.

Also you mentioned 90Hz what crossover slope should be used 6db 12db 18db 24db 48db?

As for the high frequency stuff! Bugger I can hear pigeons above me, sounds like they’re in the loft “rats with wings!”:biting:

Yes the high end of the sub lows,... [Getting up into investigate sound?] bugger they where coming from the bathroom near to the open window and yet it sounded like they where above!! Psychoacoustics, hay, sure fooled me.

Yes the high end I haven’t the slightest clue but I would guess that was as far as I was letting the frequency sweep run to from 20Hz to 120Hz.

boputnam
05-09-2008, 10:04 PM
Hey...

Well, I'd try treating the 4645 as a true subwoofer - restrict the 4645 from doing anything above 90Hz - that's just a guess, but I think a reasonable start. JBL recommends HPF of 80 - 150Hz. In the case where this is mated with your "mains" - Control 5's - o it's likely you may need to move it higher, but I did not like the curves you posted. They were not good. Something is wrong.


I think I ran the frequency sweep yesterday from 20Hz to 120Hz for the JBL 4645 I could run the sweep test again. And moving the microphone around all the time is bothering me. I don't understand what you are doing. Try this:

- use only the 4645
- use some full-range Pink Noise.
- do not use any filters, no HPF, no nothing.
- do not move the measurement mic.
- post the curve

This is the curve JBL has in their brochure - controlled conditions, surely - but yours was SO different there is something wrong.

So, back to the beginning - try NO FILTERS, and run the subs raw. No HPF. No nothing. Just run them and post the curve. Let's see where you are at.

234STI
05-09-2008, 10:45 PM
This thread makes me wonder why I havent seen this particular theater design in one of the popular magazines yet.

pos
05-10-2008, 03:13 AM
Hey...

Well, I'd try treating the 4645 as a true subwoofer - restrict the 4645 from doing anything above 90Hz - that's just a guess, but I think a reasonable start. JBL recommends HPF of 80 - 150Hz. In the case where this is mated with your "mains" - Control 5's - o it's likely you may need to move it higher, but I did not like the curves you posted. They were not good. Something is wrong.

I don't understand what you are doing. Try this:

- use only the 4645
- use some full-range Pink Noise.
- do not use any filters, no HPF, no nothing.
- do not move the measurement mic.
- post the curve

This is the curve JBL has in their brochure - controlled conditions, surely - but yours was SO different there is something wrong.

So, back to the beginning - try NO FILTERS, and run the subs raw. No HPF. No nothing. Just run them and post the curve. Let's see where you are at.

Also, there is no 2245H in Ashley's 4645 clone if I remember well, but a 2240H, and the box is custom made (tuning?)

boputnam
05-11-2008, 10:23 AM
This thread makes me wonder why I havent seen this particular theater design in one of the popular magazines yet.It a top secret configuration. You're lucky to have seen it early... ;)

cooky1257
05-11-2008, 10:33 AM
This thread makes me wonder why I havent seen this particular theater design in one of the popular magazines yet.

:DWould sir like a saucer of milk?
MEEEOOWWWWWWWWWWWW!

JBL 4645
05-12-2008, 07:02 AM
Also, there is no 2245H in Ashley's 4645 clone if I remember well, but a 2240H, and the box is custom made (tuning?)

What pos said is right its mimic and there’s no shame in it, most of the members hare and making DIY JBL products for home entertainment.:D

Anyway I’ve taken a direct link test with single lead going directly into Alesis RA 300 for the sub bass LFE.1 channel, without any filtering other than the frequency sweep from 20Hz to 120Hz.

ECM8000 microphone was placed behind the sofa at distance away from the DIY JBL 4645 clone, LOL with JBL 2240 at 9 feet 8”.

http://i262.photobucket.com/albums/ii100/BourneUltimatum3417/JBL4645subbasstestdiectlinktoAlesis.jpg

boputnam
05-12-2008, 02:13 PM
Well, Ashley, it seems that with that post, you do know what you are doing, but that response curve is severly not good. You have some serious -20dB down points that to me suggest acoustic cancellations, but I don't know.

Can you reverse the phase on that sub, and re-run the tests for grins?

grumpy
05-12-2008, 02:43 PM
Have a look here regarding what might look reasonable, even including room nodes:

http://bobhodas.com/pub3.html

1st & 2nd order room modes, based on raw room dimensions match some of the nulls,
but it does seem as though a comparison of nearfield response curves might help
(one at port, one at 2240). I don't claim to have a cure, but that's likely what I'd do.

JBL 4645
05-12-2008, 03:49 PM
Well, Ashley, it seems that with that post, you do know what you are doing, but that response curve is severly not good. You have some serious -20dB down points that to me suggest acoustic cancellations, but I don't know.

Can you reverse the phase on that sub, and re-run the tests for grins?

bop

I would say 100% on the room mode issues there are few in the, in fact we all them in our rooms or even in the real world with real word sounds I’ve heard room modes.

I could place the microphone up close, how close and at what angle do you recommend I should position the microphone at?

Thanks.:)

Oh, there is just one other thing. I’ve moved the sofa back I mean moved it back a few feet, where I noticed a bit more of the depth in the lower end.

I could test it again and in the new position. I also had to space the left and right out a bit wider due to stereo front filed narrowing and half pans were a bit hard to follow.

Anyway you give tell me where I should place the mike and I’ll tackle it again. I would prefer a and full range RTA one that only monitors.

Have a look here regarding what might look reasonable, even including room nodes:

http://bobhodas.com/pub3.html

1st & 2nd order room modes, based on raw room dimensions match some of the nulls,
but it does seem as though a comparison of nearfield response curves might help
(one at port, one at 2240). I don't claim to have a cure, but that's likely what I'd do.

grumpy

I’ve heard of Bag End when reading about some of there 18” subs during around (2000) response down to 8Hz though its electronic active crossover, and the baffle wall.

Bag End 18" sub
http://www.hometheaterhifi.com/volume_4_4/bagend18.html

grumpy
05-12-2008, 09:09 PM
I was thinking you could get an idea of what your sub is capable of
by getting the mic close... say 1-2cm, so the room will influence the
measurement less. One measurement at the port, one at the woofer...
I put the mic off center, ~ 1/3 way from the center.

Omni mic? measurement angle shouldn't be critical, just be consistent.
Next is sorting out what is room, what isn't, and how sub placement,
room treatments (if in the plan), or EQ might help.

That's quite an impressive/dedicated system you've built up :D -grumpy

JBL 4645
07-22-2008, 12:55 PM
Just finished fitting the remaining other JBL control 1 to the ceiling for matrix height surround as well as working with monaural surround. How that works is with the Pioneer VSP-200 other matrix functions called (Simulated and Studio) modes that work with sidewall surrounds when in this mode.

Simulated provides a bit involvement with the opening of “InnerSpace” (1987) as the liqueur is pored into glass and rather having it on left and right sidewall surrounds I can place a little bend overheard that works quite will.

Studio mode presents a lesser watery liqueur sound as that is mostly on left and right sidewall arrays.

Dolby stereo Pro-Logic even lesser in this mode as the sound is directed to the centre back surrounds as it would appear the surrounds are monaural.

Drilled into the ceiling with small pilot-holes to make the task easier and then mounted the brackets and attached the JBL control 1 up and tightened up the screw. Anyway I tidy up the dangling cables from the ceiling with cable trunking and need to get a few more lengths of it to finish it up as I ran out, its only £1.98p for 2.4m length, so what the heck.


http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL1.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL2.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL3.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL4.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL5.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL6.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL7.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL8.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLheightsurroundsJBL9.jpg

JBL 4645
07-22-2008, 01:11 PM
I was thinking you could get an idea of what your sub is capable of
by getting the mic close... say 1-2cm, so the room will influence the
measurement less. One measurement at the port, one at the woofer...
I put the mic off center, ~ 1/3 way from the center.

Omni mic? measurement angle shouldn't be critical, just be consistent.
Next is sorting out what is room, what isn't, and how sub placement,
room treatments (if in the plan), or EQ might help.

That's quite an impressive/dedicated system you've built up :D -grumpy

Okay I’ll give that go, cheers.:)

JBL 4645
08-08-2008, 06:45 PM
Repositioned the arrangement of the JBL control 1 by placing some timbre slightly ahead by 18” re-spaced them out a bit and mirrored the difference on the opposite side redid the EQ and there’s a noticeable difference in bass mid and high range, that’s encompassed around the ears, rather than that common lose hole in the bucket sound that most home cinema users have.

Screwed up some timbre that took around 10 minutes piloted the holes with electric drill to make it easier to screw the back bracket to the timber. Re-wired the series of the cables to the surrounds, took bath because I was sweating like pig, came back in finished off a few more surrounds then settled down and relaxed with the surrounds only to see what else need attention.

Standing up and walking around it remains stable and uniform, just the way I want it. also I’ve removed the height surrounds only until I get another set of JBL control 1 as the other two are positioned on the sides around the seating area and slightly ahead of it as well.

The bridge sequence on the opening of Star Trek II: The Wrath of Khan has wonderful ambient low end rumble that doesn’t draw attention to the surrounding JBL control 1, certain levels change in the pitch of the Enterprise’s engines and when captain Kirk enters the bridge simulator, is heard with metallic like sound a few pressure hydraulic sounds are heard as well.



http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcontrol1repostionedJBL1.jpg



http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcontrol1repostionedJBL2.jpg



http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcontrol1repostionedJBL3.jpg


http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcontrol1repostionedJBL4.jpg

JBL 4645
08-14-2008, 01:06 PM
After slight few IR inferred sensor issues with the commands being sent from the remote control that activates a few functions on the Kenwood KRF-X9050D THX select. I was forced to open it up, to correct the minor difficulty.

I fought it might have been a dry joint on the one of the pins that connects from the IR to the PCB so there was no soldering involved. I took non-metallic plastic object and prodded around with the pins that connect to the IR sensor and PCB to see if anyone one of them was lose, none what so ever.

All that was needed was to push the IR sensor into proper position and that it.

I also cleaned around inside with dust that had settled onto the PCB with duster and vacuum cleaner. Also with the faceplate removed I polished it up to remove smudges and finger makes. Screwed the faceplate back on replaced the outer casing and plugged the cables back into proper operating function.

Oh, what a palaver!

Now that I’m relaxed with (Jean Michel Jarre) “Rendezvous” maybe I can get on with something.


http://i279.photobucket.com/albums/kk123/IndianaJones34/KenwoodKRF-X9050DTHX1.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/KenwoodKRF-X9050DTHX2.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/KenwoodKRF-X9050DTHX3.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/KenwoodKRF-X9050DTHX4.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/KenwoodKRF-X9050DTHX5.jpg

hjames
08-14-2008, 02:01 PM
Oh, what a palaver!

Now that I’m relaxed with (Jean Michel Jarre) “Rendezvous” maybe I can get on with something.



palaver??
PALAVER??
We don't need no stinkin' PALAVER!!

We're here for the MUSIC, not the sound of one man talking ...

=========================

. According to the Oxford English Dictionary PALAVER derives from the Portuguese "palavra" meaning "speech" (cognate with the English word "parable")which meant "talk, parley,discussion", specifically between Portuguese traders and West African natives. So "what a palaver" - "what a load of [pointless] discussion".

JBL 4645
08-14-2008, 03:18 PM
palaver??
PALAVER??
We don't need no stinkin' PALAVER!!

We're here for the MUSIC, not the sound of one man talking ...

=========================

. According to the Oxford English Dictionary PALAVER derives from the Portuguese "palavra" meaning "speech" (cognate with the English word "parable")which meant "talk, parley,discussion", specifically between Portuguese traders and West African natives. So "what a palaver" - "what a load of [pointless] discussion".


http://www.bu.edu/mih/images/Freud.jpg
Has it been a rough day Heather? Talk too me get out in the open.:D

hjames
08-14-2008, 06:07 PM
But you dropped that "Palaver" phrase yourself that probably many of us don't use to often,
so - fess up, what were you gettin' at??

"Oh, what a palaver!"

I figured posting the definition didn't help much ...

I mean, I get "what a load of bollocks", but "palaver" ... ???

JBL 4645
08-14-2008, 06:17 PM
But you dropped that "Palaver" phrase yourself that probably many of us don't use to often,
so - fess up, what were you gettin' at??

"Oh, what a palaver!"

I figured posting the definition didn't help much ...

I mean, I get "what a load of bollocks", but "palaver" ... ???

Undoing it all and sorting it out! That means removing everything and unplugging leads, does that spell it out. I was clam when I was doing it otherwise if I didn’t think I was confident at jumping inside the AVR I wouldn’t have done it. It was simple fixture that took around 30 minutes from undoing it all and replacing it.

Oh, what a palaver for such a simple thing. don’t you have days like that when a simple thing crops up, that distracts you away from something else.

I made a few minor EQ adjustments a few nights ago and wanted to listen to film then the (remote commands) where inoperative and I was forced to do something else.

Oh, what’s next???

hjames
08-14-2008, 06:38 PM
Look, it was just weird that you posted this long discussion of redoing your receiver then (basically) said "What a Pointless Discussion"
(much like this one!) ..

just seemed an off thing for ya to say, is all ...

off to bed for me, early morning today means no late night in DC!

JBL 4645
08-14-2008, 06:54 PM
Look, it was just weird that you posted this long discussion of redoing your receiver then (basically) said "What a Pointless Discussion"
(much like this one!) ..

just seemed an off thing for ya to say, is all ...

off to bed for me, early morning today means no late night in DC!

No late night I guess you got to get up early for the voting poles. LOL :D see you later Heather.

JBL 4645
08-26-2008, 08:06 AM
Received my third Alesis RA300 this afternoon and it’s plugged up for the LFE.1 in (bridge mode) only.

Thou slightly behind and other three Alesis RA300 for basic 7.1 configuration isn’t really enough for the requirements as I have a dozen ideas bouncing around in my head.

One thing is clearly evident and that’s the clutter that’s starting to build up! I really need to get those Samson 19” racks and do this with slight bit of professionalism and house all the equipment in the bedroom, with a set of holes drilled though the wall and the cables passed though it for a neat and tidy look.

I’m warming the third Alesis RA300 up the moment with my personal six-track Dolby stereo copy of RAMBO III (1988) that won’t be realised on region 2 DVD till next year.

LCRS bass extension is still be directed to the Eltax A 12-R sub while the JBL 4645 calmly handles LFE.1 effects only.

The prison breakout where John Rambo fails on his first attempt has nice blend of isolated screen front information of rapid machinegun fire grade pin, retracting and being heard to screen left HF! Dialogue speech indelibility is terrific as well to help understand what is happen “loud and clear” thou not ear busting! :D



http://i279.photobucket.com/albums/kk123/IndianaJones34/AlesisRA3001.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/AlesisRA3002.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/AlesisRA3003.jpg


(http://i279.photobucket.com/albums/kk123/IndianaJones34/AlesisRA3003.jpg)

JBL 4645
09-11-2008, 01:43 PM
I’ve set-up one of two extra JBL Control 5 as pre-five screen fronts a few more amplifiers and Dolby stereo decoders to make it fully functional into two system playback mode for baby boom and five screen discrete matrix that derives information from the centre channel thus making it more clearer as well as extracting part of the half panned left and right information and sending into the (two inner channels, left-centre right-centre.


http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLBladeRunnerfivescreen.jpg


Tonight’s first test is with the (1982) futuristic nightmarish thriller “Blade Runner” International Theatrical Cut after testing a few scenes out with opening sequences and The Pris Attack where Deckard is taken by surprise only to finish her off with shot to the stomach that resulted in a high pitch frenzy of screaming! A second shot reverberated outwards from taking individual tests of LCR only.

Tested left front with (CR muted) checked SPL db and was satisfied with the improvement I made.

Switching to right front with (LC muted) checked the levels of low while midrange and high HF have a different sound, noted the bass level checked it off the list and moved over to centre.

(Muting LR) while listening carefully to the centre action of her scream and the echo that’s around it and other tiny little details, until Deckard fired another shot that was bit more punchier and milder at the listen area with mild scary sound that rolled over my chest.

Playing the whole scene with LCR and sub bass extension and the LFE.1 track escalated it higher to a disturbing almost sickening point, its not cherry film its fairly violent, but that’s the whole point of the story.


http://i282.photobucket.com/albums/kk279/SpectrumsubbassLFE13417/ThePrisAttackBladeRunner1982Interna.jpg

Audiobeer
09-11-2008, 05:40 PM
A bump here to overcome the Daleks.

JBL 4645
09-11-2008, 06:19 PM
A bump here to overcome the Daleks.

http://i279.photobucket.com/albums/kk123/IndianaJones34/theborg.jpg

JBL 4645
09-21-2008, 05:36 AM
After reading some of the links provided by Hoerninger on capacitors and more I read the few paragraphs in this link and decided I was board out of head and since I’ve got nothing else to ramble about I looked though a box for some cable to try out this “open free” experiment and thou I haven plotted the lowest frequency response as of yet I have tried it with “Sheppard Moons” (track 7) “Far And Away”from the Enya album.

http://www.humblehomemadehifi.com/Serious-Sub.html (http://www.humblehomemadehifi.com/Serious-Sub.html)

I was rather surprised after readjust the Alesis RA300 that is in bridge mode for sub bass and made a few changes on the 125Hz but since I’m doing this by ear and haven’t ran the SPL d metre or the RTA with the spectrumlab to see what the in-room response is I can feel a noticeable natural difference in the tone. You might say this is naked sub baas. :D

I found a counter weight that is used on the telescope and small piece of timbre to support the JBL 15” 2226 in a vertical.

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLopenfreeexperiment1.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLopenfreeexperiment2.jpg

JBL 4645
09-26-2008, 07:22 AM
Extended the width of the sidewall surrounds with 4 foot spacing between each one of them, results wow! it totally encompassed with greater uniformity. The bell dong from Underworld (2003) where Seline, puts a few bullets into the werewolf has the bell dong up front then pans to the surrounds with smoothness. A few minor changes in the EQ for the sidewall surrounds was made to get the right amount low end need.

Walking steadily around the room while listening to Star Trek the motion picture original (1979) laserdisc to DVD-RW with only the surrounds playing there is minimal change in the sound, with Jerry Goldsmith’s score “The cloud” THX on/off it’s as if I’m warring “headphones” like a cinema, only in smaller room.


http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcontrol1extrawide1.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcontrol1extrawide2.jpg

The centre back has remained unchanged because this placement offers the tightest centre back possible without the hole in sound image. There maybe a few cables dangling in the picture but this only to get my bearings, before I start knocking up a small false upper wall to the rear left, the timber will be taken down and fitted with new timber and placed inside the a few inches so that I can place wall with flush look.

I’m also considering repainting the wall, but that won’t help the small reflection and thin layer of absorbent material attached to the walls though the use of wall plugs and just simply screwed up will be better option, as to when I get around to this depends on how hard I save because timber is few bob, and it soon mounts up in cost. Paint, well I’ll repaint the wall a different colour a kinder of warmer colour or I may just go with neutral texture kinder like the Empire, can’t be that hard. :D


http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcontrol1extrawide3.jpg

JBL 4645
09-27-2008, 09:11 AM
My dad brought around a few chisels so that I switch the door around so that it opens in the opposite direction. The door needs a clean up that I’ll get around to sometime next week with rub down and new piece of door beading. For the meantime its held in place with two screws no chance of falling off.

Question is does it improve the JBL sound hmm, now that is the question?

My dad started the first part just to make sure I haven’t forgotten then left me to finish it off. its only taken about 2 hours to do. This is the first step to revamping the room once the door is all cleaned up I’ll move on to the next phase.

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645door1.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645door3.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645door4.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645door5.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645door6.jpg

Ian Mackenzie
09-27-2008, 02:25 PM
Thought you might get a laugh out of this...a small perfectly formed home cinema.

boputnam
09-27-2008, 04:49 PM
You might say this is naked sub baas. :D

I found a counter weight that is used on the telescope and small piece of timbre to support the JBL 15” 2226 in a vertical. Uh, Ashley...

You should not run that 2226, or any woof for that matter, outside of a cabinet. Other than not being able to produce any usable LF, you also run a great risk of the voice coil jumping the gap. Not good...

Allanvh5150
09-27-2008, 09:30 PM
Uh, Ashley...

You should not run that 2226, or any woof for that matter, outside of a cabinet. Other than not being able to produce any usable LF, you also run a great risk of the voice coil jumping the gap. Not good...

It's a whole new take on an infinite baffle!:)

JBL 4645
10-24-2008, 11:24 PM
Well what happened, final happened Sooty managed to get stuck inside the JBL 4645!

Early hours of this morning while I generally let Sooty wonder around the room it crawled though one of the three lower ports that is closest to the floor got right inside it where I couldn’t even get my arm inside the port to grab it.

I had to undo all the screws and remove the 18” JBL sub bass to get the kitten out because if was unaware I could have had some music or film playing and that would harm the kitten! [Sigh] fuck sakes!

Since getting out [sigh] the little bugger 10 minites after I have replaced the JBL sub bass driver makes another attempt! Only this time, I managed to grab it by the tail hold it while, I stuck my other arm though the other port and pushed it out backwards. Little fucker! And several minutes later it tries it again! [sigh] getting a little pissed off now!:banghead:

So what I’ve tried now is to block-up one of the ports with a few plastic bags stuffed inside until Sooty, grows bigger and matures a little bit. I’d have to also place a grill over the 18” JBL sub bass driver and the smaller Eltax 12” sub bass driver somehow?

I guess Sooty likes the sound of the JBL 4645. Yesterday while watching The War of the Worlds it walks up and stands in-front of it while the atomic bomb went off weird kitten!?

Cat owner’s block up the port on the sub bass enclosure until kitten is several months old.

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645catinporthole1.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645catinporthole2.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645catinporthole3.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBL4645catinportholeportblocked1.jpg

JBL 4645
10-25-2008, 05:28 AM
Okay another simple DIY improvement to keep the surrounds at high level without it getting out of control and yet maintaining a higher level even with softer sound effects or music and 360° dialogue panning effects.

This is technique I’ve done before at least 6 years ago and it’s been disconnected for a while since I moved. This evening I decided to re-plug the surrounds pre-outputs left and right to the inputs of a disused Ferguson videostar Hi-Fi stereo VCR that has built in (audio limiter) and with a slight extra boost of the output levels to add extra enhancement of lower level effects to the series of x10 JBL control 1 surrounds.

Last weeks demo was "Star Trek Nemesis" (2002) that offers extraordinary surround effects from what you’d expect from a Star Trek feature film.

Most if not all Hi-Fi stereo VCR should have built in audio limiter even a monaural VCR might come equipped with one so if, you feel like trying this out for yourselves its rather easy to set-up.

The best way to explore sound on film soundtracks is though the use of separates where the possibilities are limitless, over standard AVR internal amplifiers.



http://i279.photobucket.com/albums/kk123/IndianaJones34/Furgusonvideostar1.jpg


http://i279.photobucket.com/albums/kk123/IndianaJones34/Furgusonvideostar2.jpg


http://i279.photobucket.com/albums/kk123/IndianaJones34/StarTrekNemesisFurgusonvideostar2.jpg

JBL 4645
10-30-2008, 12:33 PM
My cat is strange ole kitten :D its boy it was given its shots yesterday weighed and measured and was given worming pack a de-flea pack to put on Sooty back. He’ll get another check-up in three weeks.

It was staring at the computer screen looking at the (cursor) as I flip though other forum sites cheeking up on threads.

http://i282.photobucket.com/albums/kk279/SpectrumsubbassLFE13417/SootyJBLcat.jpg

hjames
10-30-2008, 06:44 PM
My cat is strange ole kitten :D its boy it was given its shots yesterday weighed and measured and was given worming pack a de-flea pack to put on Sooty back. He’ll get another check-up in three weeks.

It was staring at the computer screen looking at the (cursor) as I flip though other forum sites cheeking up on threads.


So - you've had him a while now - is he your good buddy yet??
Spoiled him yet? (smile)

JBL 4645
10-31-2008, 05:04 AM
So - you've had him a while now - is he your good buddy yet??
Spoiled him yet? (smile)

Well the weird and interesting thing is he likes sleeping on the bed near the pillows so I’d say he’s my new best friend. Only problem is the (biting and scratching) I had to go to the doctors to show the scratches he is vicious god knows what he’s going to be like in three more months from now?

Back leg muscles is starting to get strong now as he has no problem of leaping 2 feet onto the back of sofa. first he stands on op of the 15” JBL bass drivers I have laying on the floor then leaps onto the back of the sofa that is 2 feet.

I let him sleep with me in the bedroom for a few hours last night, then put him out in the hallway because I was afraid if I rolled over I might lay on him, so I put him out on his bed and closed the bedroom door.

He uses the litter-tray always I play with him to encourage (excise) and he really gets so worked up hyperactive! At the present time he’s sleeping on his bed in the hallway as he was getting too excited running around in the living-room he was getting in the way of the keyboard and I had to keep picking him jump and placing him on the sofa and so on and so on. He then walked out the room had meal and went to sleep, to reserve energy.

hjames
10-31-2008, 05:26 AM
If he is biting he thinks you are another kitten and thats normal play - you have to discourage that. Don't hit him, of course, but withdraw when he gets too rough. If you are petting him and he rolls and bits stop petting him.
He will learn to calm down, but part of that is just him being a kitten ...

You might it better to play remotely. One of my boy-cat's favorite toys is a kind of fishing rod with a cloth mouse I tied to the end of the fishing line. I can cast it out across the room and reel it back and he likes to chase it and pounce. He can bite and claw at that and it keeps him from biting on me.




Well the weird and interesting thing is he likes sleeping on the bed near the pillows so I’d say he’s my new best friend. Only problem is the (biting and scratching) I had to go to the doctors to show the scratches he is vicious god knows what he’s going to be like in three more months from now?

Back leg muscles is starting to get strong now as he has no problem of leaping 2 feet onto the back of sofa. first he stands on op of the 15” JBL bass drivers I have laying on the floor then leaps onto the back of the sofa that is 2 feet.

I let him sleep with me in the bedroom for a few hours last night, then put him out in the hallway because I was afraid if I rolled over I might lay on him, so I put him out on his bed and closed the bedroom door.

He uses the litter-tray always I play with him to encourage (excise) and he really gets so worked up hyperactive! At the present time he’s sleeping on his bed in the hallway as he was getting too excited running around in the living-room he was getting in the way of the keyboard and I had to keep picking him jump and placing him on the sofa and so on and so on. He then walked out the room had meal and went to sleep, to reserve energy.

JBL 4645
10-31-2008, 05:42 AM
If he is biting he things you are another kitten and thats normal play - you have to discourage that. Don't hit him, of course, but withdraw when he gets too rough. If you are petting him and he rolls and bits stop petting him.
He will learn to calm down, but part of that is just him being a kitten ...

You might it better to play remotely. One of my boy-cat's favorite toys is a kind of fishing rod with a cloth mouse I tied to the end of the fishing line. I can cast it out across the room and reel it back and he likes to chase it and pounce. He can bite and claw at that and it keeps him from biting on me.

Oh I like that LOL (cast out the line) :D I’ll have a look and see what I can invent for him. I use at present simple kitchen towel roles, you know the cardboard tubes and he plays with those in the kitchen. I see what else I can come up with and I’ll redraw from petting him too much because the scratches are pretty bad and with my (long term skin condition) I really must need my fucking head examined :banghead:because its already starting to form (Psoriasis) due to the skin being damaged!:(

JBL 4645
11-01-2008, 09:23 AM
Boy its sure raining cats and dogs outside.

Well I decided to go to Kingson high street as I seem to remember seeing coloured tape in shop. I was right and here is what I got only 50p each.

After which I popped into Somerfield and noticed instant noodles you know like that meal that John Hurt had in Alien I just call them the (lien Noodles) :D LOL. I got 17 packs of them a 6 bananas and one strawberry milkshake for £4 pounds yes the UK is on the map for value! :applaud:

Hoerninger
11-01-2008, 10:11 AM
IOne of my boy-cat's favorite toys is a kind of fishing rod with a cloth mouse I tied to the end of the fishing line. I can cast it out across the room and reel it back and he likes to chase it and pounce. He can bite and claw at that and it keeps him from biting on me.
Yes, this thingy is so great. We have five kitties for the moment and they love it!
____________
Peter

JBL 4645
11-01-2008, 10:20 AM
Yes, this thingy is so great. We have five kitties for the moment and they love it!
____________
Peter

You mean they like JBL! 8 out of 10 owners said there cats prefer JBL!:D

WDJ
11-01-2008, 10:29 AM
Cat + Laser Pointer

(buy extra batteries)

JBL 4645
11-01-2008, 10:35 AM
Cat + Laser Pointer

(buy extra batteries)

Oh, thanks for that one I looked up youtube and saw a cat going nuts casing a laser beam. Then I reached for my laser and started waving it on the heater and Sooty leaps down and starts going nuts. :rotfl::rotfl::rotfl:

Cat And Laser Pointer
http://uk.youtube.com/watch?v=xZfK8ulOIt0

Hoerninger
11-01-2008, 10:39 AM
You mean they like JBL! :D
For example ...
I am still wondering how cats always know these places where they are adored best (and where they have the best overview).
___________
Peter

PS: Laser pointer is the best! Speed!

JBL 4645
11-01-2008, 10:43 AM
LOL that is crewel LOL I took short video in the kitchen as that has the best light for the camera. Hold on going to upload on youtube. Sooty couldn’t make heads or tails of it? LOL :D

WDJ
11-01-2008, 10:48 AM
I'd never seen it on youtube.

Couple of years ago I was building a fence and had a laser level out and turned it on to test the batteries and the cat went berserk.

Now all I have to do is make a clicking sound (like the switch) and the cat will "wakeup" immediately. It's become a morning ritual now; Newton (first cat was Figaro, or Fig for short) whines until he gets some time chasing the red dot around.

JBL 4645
11-01-2008, 10:55 AM
I'd never seen it on youtube.

Couple of years ago I was building a fence and had a laser level out and turned it on to test the batteries and the cat went berserk.

Now all I have to do is make a clicking sound (like the switch) and the cat will "wakeup" immediately. It's become a morning ritual now; Newton (first cat was Figaro, or Fig for short) whines until he gets some time chasing the red dot around.

Your right mine is going nuts it will do anything hold on I’m going to try something.:D

JBL 4645
11-01-2008, 11:03 AM
Sooty and laser beam going nuts!
http://uk.youtube.com/watch?v=fyr2rprcsUA

johnaec
11-01-2008, 11:49 AM
Sooty and laser beam going nuts!Most cats will go nuts trying to catch the little red laser light, but I also think it's a little cruel that they never catch it and just get frustrated instead. If I play with my cat and a laser, I always make sure to give her some "quality" attention at the same time, so she just doesn't think the world's messin' with her... Also - that laser light can be damaging to the eyes - be sure that doesn't happen!

As an alternative - I also put together a shiny bright red bead at the end of a length of fishing line, which when whipped about, the cat finds almost as intriguing as the laser light, with the added bonus that I let her catch it now and then.

John

JBL 4645
11-02-2008, 11:50 AM
Most cats will go nuts trying to catch the little red laser light, but I also think it's a little cruel that they never catch it and just get frustrated instead. If I play with my cat and a laser, I always make sure to give her some "quality" attention at the same time, so she just doesn't think the world's messin' with her... Also - that laser light can be damaging to the eyes - be sure that doesn't happen!

As an alternative - I also put together a shiny bright red bead at the end of a length of fishing line, which when whipped about, the cat finds almost as intriguing as the laser light, with the added bonus that I let her catch it now and then.

John

Oh, good heavens no, I’m not a Muppet I’d never point a laser into someone’s or pets eyes damn!

I like the expression on kittens face priceless they seem tame and clam yet very active and fit. I listened to Sooty heart beating a few nights ago. Animals beat faster to keep them warm.

So how many cats do you have I mean one is enough for me otherwise the mess or the smell of stale cat piss urine would be enough to die from!

Yeah I’ve been to this neighbour across the road and the stale stench make my throat burn! He has three cats and cat piss all over the kitchen cat shit as well on the kitchen work tops everyone! No word of lie!:barf:

The bathroom as cat shit on the floor and I don’t know if it was water or cat piss lying on the floor! Disgusting!:barf:

I was only over there a few hours ago for the second time because the Bournemouth council is doing a check-up on the properties an if they where to go into this guys flat they’d be gasping for air within 10 seconds!!!:barf:

I and another neighbour downstairs wanted to give this guy the heads-up I couldn’t really care less if this guy likes to live like an animal because I don’t think its fair on the two cats and the new kitten to live in foul mess of shit-hole!:barf:

I feel like telling the cat protection organisation because if they saw the living conditions that this person has lowered, himself down to they’d get a court order to have the cats re-homed or a simple clean the flat up literally. The windows are closed and there are about 40 or so flies buzzing around I’m not making this stuff up as I go along.:barf:

I had to place my coat in the washing machine when I left because the smell was lingering on my coat its that bad the air is that bad you need fucking breathing mask!:barf:

JBL 4645
11-02-2008, 12:29 PM
I had no chose I made a call to Cat Protection and they think the guy “needs help”.

I bet cat shelters are more cleaner than what I saw or lets say I’ve seen tramps living cleaner than this. It might be the guys flat but when see how the cats are living in such filth the buck stops hare! Something as to be done.

I’m not sure if all the cats are male because if one is female he’s going to be deep up to face with cat piss and shit I really don’t think he empties it out, to be truthful. I remove the cat crap as soon as Sooty goes to the litter-tray I empty it the litter out, well the first-time was two weeks ago and I should be getting near to emptying out sometime next week.

Cat litter doesn’t cost much from ASDA or most shops and I feel this guy just lets the cats shit and piss all over the kitchen. Oh, my stomach is starting to turn now just be thinking and talking about it.

The lady on the phone got the general idea of what I was describing, some people are just filthy and it’s unnecessary.

In the morning I’m popping down to the council even thou it’s none of my damn business I’m thinking about the cat’s wellbeing living in filthy. I don’t really care what else someone does in there home this is crewel and think of the, infects and germs yes GERMS lining in that flat!:barf::barf::barf:

So effective in the morning I’m going to be discrete towards the council and ask that they be discrete in handling the situation because lord knows how long his flat as been like this the cat fur on the carpet! What carpet it might as well be just tiles and cat fur at least it would be easier to keep clean each and ever single day or the week month and year.

JBL 4645
11-03-2008, 07:44 AM
Yeah, I’ve reported it this afternoon to the council.

I’ve seen tramps living cleaner than this! I bet the cat shelters smell cleaner also!

I said to the woman at the council office to take scarf and spray it with (body deodorant) and (wrap the scarf around your face and if that fails you’ll need radiation suit and breathing mask it’s that BAD!)

I swear if you had (Geiger counter) the needle will bend and melt due to the heaving foul stele of cat piss and crap that is clinging to the kitchen worktops! I’m not making this stuff up! The Bournemouth council will be doing an inspection of the outer exterior property this (Thursday) and this is really for his own benefit and the poor cats and third cat or kitten! Lord knows how many places they must have sprayed cat urine over that flat!

I took a second look yesterday with a downstairs neighbour who’s a bit weird in mean he isn’t too shape if you get my meaning? I thought it would be the decent thing to give the guy the heads up!

Anyway it’s out of my hands now. I don’t know what the other residents think when they walk into there flat that is opposite his they must be gasping for fresh ice cold water!

One more thing I swear that I can see glowing oder-ish glow coming from the windows at night-time smells BAD!!!!:barf::barf::barf::barf::barf:

JBL 4645
11-03-2008, 09:49 AM
Three little kittens they lost their mittens, and they began to cry,
"Oh mother dear, we sadly fear that we have lost our mittens."
"What! Lost your mittens, you naughty kittens!
Then you shall have no pie."
"Meeow, meeow, meeow, now we shall have no pie."
The three little kittens they found their mittens,
And they began to cry,
"Oh mother dear, see here, see here
For we have found our mittens."
"Put on your mittens, you silly kittens
And you shall have some pie"
"Meeow, meeow, meeow,
Now let us have some pie."
The three little kittens put on their mittens
And soon ate up the pie,
"Oh mother dear, we greatly fear
That we have soiled our mittens."
"What! soiled you mittens, you naughty kittens!"
Then they began to cry, "Meeow, meeow, meeow"
Then they began to sigh.
The three little kittens they washed their mittens
And hung them out to dry,
"Oh mother dear, do you not hear
That we have washed our mittens."
"What! washed your mittens, you are good kittens."
But I smell a rat close by,
"Meeow, meeow, meeow" we smell a rat close by...


I’ve been on to cat protection to find out ways of keeping it tame and it seems like the cat won’t calm down until at least 18 months! Fucking sakes how many scratch marks am I going to have in the next 18 months! If I don’t play with it! It will be even rougher in 18 months! Does something give here for the love of god!

Found this interesting facts link below. I was curious to know if cat is colour-blind because its odd how it sees the red laser beam and I’m wondering what colour would it be to the kitten?
http://www.catscans.com/facts.htm (http://www.catscans.com/facts.htm)

“Cats can see up to 120 feet away. Their peripheral vision is about 285 degrees.”

Now this is something I noticed on the first week when I had the kitten I noticed it eyes where moving or (REM) is it called, Rapid Eye Movement

“Kittens begin dreaming at just over one week old.”

Another interesting fact

“Cats are the sleepiest of all mammals. They spend 16 hours of each day sleeping. With that in mind, a seven year old cat has only been awake for two years of its life!”

Well the cat is out of the bag now yes I do talk to it! In fact I do a rather cool cat sound (imitation sound) where I suck in the sound then at the same time I make the meow sound effect and its even fooled several people!:D

“95% of all cat owners admit they talk to their cats.”


You have got to be kidding this sound more like Tiger than cat! LOL

“According to the Guiness Book of World Records, the heaviest cat on record was Himmy, an Australian cat, who weighed 46 pounds, 15.25 ounces in 1986. Himmy's waist was 33 inches! The previous record-holder had been Spice, a ginger-and-white tom cat from Connecticut, who weighed 43 pounds when he died in 1977.”

JBL 4645
11-03-2008, 03:29 PM
Found this interesting my Sooty has range over a dog on the low and high.

SpeciesApproximate Range (Hz)
human 64-23,000
dog 67-45,000
cat 45-64,000
cow 23-35,000
horse 55-33,500
sheep 100-30,000
rabbit 360-42,000
rat 200-76,000
mouse 1,000-91,000
gerbil 100-60,000
guinea pig 54-50,000
hedgehog 250-45,000
raccoon 100-40,000
ferret 16-44,000
opossum 500-64,000
chinchilla 90-22,800
bat 2,000-110,000
beluga whale 1,000-123,000
elephant 16-12,000
porpoise 75-150,000
goldfish 20-3,000
catfish 50-4,000
tuna 50-1,100
bullfrog 100-3,000
tree frog 50-4,000
canary 250-8,000
parakeet 200-8,500
cockatiel 250-8,000
owl 200-12,000
chicken 125-2,000



http://www.lsu.edu/deafness/HearingRange.html

JBL 4645
11-03-2008, 03:46 PM
Found this link and quote here from the link.

http://answers.yahoo.com/question/index?qid=20081002221716AAhZnTO


"Best Answer - Chosen by Asker

At the lower-pitched sounds, there is little difference between humans and cats (and dogs). At the higher sounds, humans can hear up to approximately 20,000 cycles per second. Dogs can hear sounds of frequencies of up to 35,000 to 45,000 cycles. Cats can hear sounds of an amazingly high pitch -- sounds up to 100,000 cycles per second!

Interestingly, the highest pitched squeak that a mouse can make is approximately the same frequency -- 100,000 cycles per second. That is no coincidence. Cats' hearing evolved to enable them to be better hunters. Cats hunt by lurking in ambush and listening very closely for the slightest squeak or rustle of their prey. Their incredibly sensitive hearing allows them to be very effective at this task.

The hearing ability of a cat does decrease with age. But younger cats can not only hear a wide range of sounds, but they are also able to detect the precise direction of a sound. They can distinguish between two sounds that are only 18 inches apart at a distance of 60 feet. They can also easily tell the difference between two sounds from the same direction but a different distances.

Clearly, our cats can outperform us when it comes to hearing abilities!



1 month ago"

JBL 4645
11-05-2008, 09:06 AM
After trial and error to get my kitten to drink water after many weeks! I managed to get the first picture after weeks and weeks 5 weeks trying to get it to be more normal and to eat and drink! It runs around a lot and it must be parched for water after all that!?




http://i279.photobucket.com/albums/kk123/IndianaJones34/SootyItsamiracle1.jpg




http://i279.photobucket.com/albums/kk123/IndianaJones34/SootyItsamiracle.jpg




http://i279.photobucket.com/albums/kk123/IndianaJones34/SootyItsamiracle2.jpg

JBL 4645
11-06-2008, 08:25 AM
Just did a quick bit of shopping and stopped off at the (pet-store) to buy Sooty a cat box for when needs to the vests for (check-ups) I wasn’t sure at first what size cat-box to get and the nice girl said an adult box would be needed. She’s right of course I have no idea how large Sooty will get in a year’s time.

Took this picture of Sooty standing on his cat-box the little bugger wouldn’t stay still for the camera LOL.

£23.00 pounds for the cat-box not too bad I like it.:)

JBL 4645
11-07-2008, 01:54 PM
Here’s a rather simple improvement I did a few nights back that’s been quite successful so far with no issues. I took one of those AWIA speakers that I found as you know I fixed one of them up last year. Well its working a treat and it could be worse if I had any more spare JBL speakers don’t you think I would have used JBL! Its add a bit more low end quality to dialogue low tones where a performer might have (deeper low to mid bass tone).

Bass mid as been maximised with bit more low end that is seems plentiful or about the right size for room so to speak. If I could place matching LCR JBL control 10 or 12 SR if I had them not sure if the 12SR is magnetically shielded I’m sure the Control 10 is. Wiring is parallel loudness a little adjusting of the parametric EQ on the centre channel along with left and right for equal level and smoothness of dialogue panning and effects, so I’ll tackle later on only need a few db over LCR.

Anyway I like seems to work on hard dynamic films like X-Men The Last Stand (2006).

As you can see the other speaker is placed directly behind or centred to the JBL control 5 it does add extra added kick like when Storm gets her head shoved though a glass-table in chapter 10 ouch that’s going to hurt!

I haven’t tested it with Real Time Frequency Analysis one with the extra centre support. It would be better of with single 12” or 15” for room of this size LCR.


http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcentreimprovement1.jpg



http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcentreimprovement2.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcentreimprovement3.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcentreimprovement4.jpg

JBL 4645
11-10-2008, 09:10 PM
Poor ole Sooty has fleas!:( I’ve washed it over and over and over have washed drowned at least 25 to 30 fleas a few nights ago down the drain! But Sooty is still scratching so I know he still has few of those little buggers hiding running for cover as soon as the water hits Sooty’s black fur coat.

Eggs might be clinging to the coat and have attached and have life expectance of about 3 to 4 weeks too damn long! A few have no doubt have dropped off onto the floor. Thank goodness I haven’t laid a carpet down yet! The tiled flooring should make it possible to clean and vacuum up all possible nasty little buggers and get rid of them into the dustbin outside.

I’ll get Sooty treated again on 19th of this mouth when I take him to the vet. I need him (flea coat free)! I had to deal with fucking (silverfish) when I moved into the flat and the last thing I want know is a fucking infestation of fleas in my flat.:banghead:

demon
11-11-2008, 02:56 PM
hey!

im here just to let you know that i followed your thread since i joined the forum.
i like the pics. and sooty the cat, well.

so when do you start cramming your room full with big theater-horns?

mikey

JBL 4645
11-13-2008, 10:37 PM
hey!

im here just to let you know that i followed your thread since i joined the forum.
i like the pics. and sooty the cat, well.

so when do you start cramming your room full with big theater-horns?

mikey

Just as soon as, I knock off a few post offices :D LOL just kidding. I haven’t got the money thou someone at Future Projections was offring me some HF horns not JBL I can’t remember the name, but from the sound of it they were going cheep.

No, JBL is what I want, nothing else. Second-hand I’ll buy second hand reconditioned if I had the money.

I can test a high frequency sound up to the limit of the control 5 on the HF with tones above 12 KHz up 20 KHz, Sooty can hear those tones so easily.

JBL 4645
11-22-2008, 02:32 PM
I’ve done some more testing with REW (Room EQ Wizard) and after a bit of (trial and error) I nailed this frequency response that is slightly smoother over the pervious one. Range is smoother and its virtual eliminated some portions of low frequency boom.

The floor tends to vibrate a bit more when bypassing the BFQ2496 and readjusting the sub bass level where its boom I my ear with mild vibration. When switching back to BFQ2496 and adjusting the sub bass level from 0db to +10db, no clipping is evident on the Alesis RA300 all is running smooth. the floor vibrated as well as vibration in the sofa with wormhole sequence from original laserdisc to DVD-RW Star Trek the motion picture Dolby stereo.

Vibration on the TV I noticed a slight vibration emitting from the TV location during quiet moment from the film, as the Enterprise moves though the (Vger cloud) which was only in at a few seconds, after securing the vibration with a few pieces of cardboard placed underneath it.

I really should get this horizontal base platform built and get the speakers off the TV that is bad because it will transmit vibration into it, I should place a second smaller platform above the sub bass by a 1” or place rubber matting underneath it and run a few frequency sweeps at different sound pressure levels to determine or locate any possible vibrations and fix them.

I took graph of the frequency sweep and the corrections that I made also the numbers that I entered into the BFQ2496 parametric EQ.


http://i282.photobucket.com/albums/kk279/SpectrumsubbassLFE13417/REWEQ22November2008.jpg


http://i282.photobucket.com/albums/kk279/SpectrumsubbassLFE13417/REWEQfreqnumbers22November2008.jpg


http://i282.photobucket.com/albums/kk279/SpectrumsubbassLFE13417/StarTrekthemotionpicturevgercloudsu.jpg

I guess the vibration was around or between 57Hz to 59Hz. If I was standing a wooden floor it would be real pain in the neck to isolate because the floorboard would flex due to my (body weight) and therefore adjust what ever there is up front, because I’ve run into this issue before at my last crappy home, the floorboards really sucked!

I might get some rubber feet to place underneath the JBL 4645 to minimize floor vibration.

JBL 4645
11-25-2008, 09:54 AM
I’ve had another crack at the BFQ2496. A few guys on the shack site was helpful to recommend a few changes, so the graph hare is somewhat different from a few nights ago.

Frigging cold down :( here tonight I wonder if Rich is keeping warm in London his home looked kinder large to heat when I visited him last year.

I noticed a few changes after using auto EQ adjustment a few trail and errors the sub bass with Dolby stereo seems controlled. Sooty is standing on the pull out draw overlooking my typing, its not very helpful at spelling errors, (are you Sooty) he keeps me warm at night sleeping on the bed, at my feet, he’s like a portable water bottle. :D

jcrobso
11-26-2008, 10:06 AM
Poor ole Sooty has fleas!:( I’ve washed it over and over and over have washed drowned at least 25 to 30 fleas a few nights ago down the drain! But Sooty is still scratching so I know he still has few of those little buggers hiding running for cover as soon as the water hits Sooty’s black fur coat.

Eggs might be clinging to the coat and have attached and have life expectance of about 3 to 4 weeks too damn long! A few have no doubt have dropped off onto the floor. Thank goodness I haven’t laid a carpet down yet! The tiled flooring should make it possible to clean and vacuum up all possible nasty little buggers and get rid of them into the dustbin outside.

I’ll get Sooty treated again on 19th of this mouth when I take him to the vet. I need him (flea coat free)! I had to deal with fucking (silverfish) when I moved into the flat and the last thing I want know is a fucking infestation of fleas in my flat.:banghead:

She would watch my monitor and try and catch the mouse pointer as I moved it around the screen. This did make it hard to get anything done, so I got a laser pointer and hard her chase the it around the room.:D John

JBL 4645
12-03-2008, 02:59 PM
She would watch my monitor and try and catch the mouse pointer as I moved it around the screen. This did make it hard to get anything done, so I got a laser pointer and hard her chase the it around the room.:D John

My cat can’t resist it. What is it with the red laser beam that drives cats nuts? LOL :D
:sleigh::xmas:

JBL 4645
12-03-2008, 03:01 PM
http://i279.photobucket.com/albums/kk123/IndianaJones34/ChristmaslightsbuggeredSootymugging.jpg

I tested the lights nearly one by one with a volt meter to see if the connection is broken between one of the lights as their series type and then said sod it! What’s the point the lights are very cheap and affordable and chances are that the light replacement bulbs are no longed made or may not even fit the lights that I’m using.

I’ll get some new ones from ASDA next week as they are real cheap as biscuits today

I could retest each light and if one is not making a circuit connection…easy, just bridge the broken connection and bingo there will be light, but I can’t be asked so…I’ll get some new ones. At least the little tree is up and looking partly decorated. :)

:sleigh::xmas:

JBL 4645
12-05-2008, 10:28 AM
Sooty has been feeling a bit unwell for the past 24 hours :( it eat some of my food! You have to take your eye of it for moment and it starts tucking into spicy food! WTF!

It brought up most its dinner that it eat previously and a clear liquid around its backside I guess it disagreed with Sooty! He took a normal kitten crap before his backside looks a bit moist? He can run around a bit and jump when he can be asked, but I’m worried as to what he ate?

He’s also being leaping up onto the kitchen worktop and there’s no telling if he licked the frying pan with cocking oil in it? I caught him earlier yesterday before he nibbled on my dinner. Plus he was running around a lot and jumping so maybe simple upset stomach is the result, just like when we start running around after eating we start to feel under the weather.

He nibbled on bit Whiskers kitten food earlier this afternoon so I’ll keep the eating down to a minimum for the next few days until I hope things improve if not I’ll take him to the vet and get him checked over.

Hoerninger
12-05-2008, 11:07 AM
I’ll keep the eating down to a minimum for the next few days until I hope things improve

Oh, these kids of today grow up with modern computer technology in such a natural way :applaud:
but the cup of coffee is not that good in Sooties situation. :no:
____________
Peter :)

JBL 4645
12-05-2008, 11:29 AM
Oh, these kids of today grow up with modern computer technology in such a natural way :applaud:
but the cup of coffee is not that good in Sooties situation. :no:
____________
Peter :)

I don’t drink coffee I don’t mind it you just won’t find tea or coffee in my kitchen cupboard, expect drinking hot instant chocolate and I know pets don’t like chocolate

I had some Uncle Bens rice with chill source and it must have gotten a bad case of it. I can’t help if the cat wants to explore the kitchen now can I. Or do I lock him in the hallway each time I go out and keep all food types off the kitchen worktop surfaces, well it looks that way because kittens cats will stick there noses into anything?

Since I posted about an hour ago he’s started to nipple on Whiskers took a kitten carp and it looked kinder of normal so that would teach him a lesion not to stick his face into my dinner! I don’t stick mine into his Whiskers and it sure smells yummy, until I start feeling sick LOL. :(:D

Its wondering around the living room and the fist place it likes to stick hits head into is the middle port on the JBL 4645 :D yeah the little bugger climbed in it again a few nights ago! and I used the red laser pointed and placed beam on the edge of the port and Sooty climbed out. I can’t want until he’s a few more months older then he’ll find it difficult to climb into.

JBL 4645
12-10-2008, 04:07 PM
Nothing new to this, expect the Sooty is feeling better now a bad case of the runs, but feeling sporty now. Its jumping and leaping and that’s cool to see. Brought it a new toy to play with called “The Bug” its already bugging him :D LOL He’s running around the living room with this thing in its mouth or moving it a few inches then pouncing on it! Grips it with front and rear paws and claws and rolls around!

He’ll get a surprise when he pulls it because, it’s a pull sting device that will vibrate and buzz and roll on the floor.

JBL 4645
12-23-2008, 09:31 AM
I took some time, yesterday to analysing the 100Hz sine wave at the listening position. I knew each had dip and peak over the LCR and it need to be levelled out so I started off with the centre channel which has an extra speaker attached to it via the LF only.

The signal was fine as it is but can be improved upon further.

I then looked at the left channel which had the greatest dip and it needed something to smoothing it out? The arrangement as it was before with 5 JBL control 5 placed over the front was only augmenting the low end from left and right but was still off by several db when monitoring the SPL db metre at the listening position.

I moved the SPL db metre along the seating area while playing the dts test demonstration set-up disc. I noticed that the centre channel was within a ±1.5db within the seating sofa area.

The left and right fronts, was miles off and needed some correction not with EQ and not with bass traps which I don’t have at the present time.

The left front like I pointed out had dips as if a black hole was sucking up its energy?:banghead:

I moved the inner left channel around while looking at the SPL db meter while it was positioned on the sofa. I then checked the level balance by moving the SPL db side to side within the seating area.

I can’t remember which side of the sofa produced excessive amounts of SPL db level as it varied with the positioning of the inner left channel. It took me hours to nail it down to a tight tolerance level so that the 100Hz sine wave was even from side to side. I must have tried 7 positions to get that tone to focus over the seating area, what a dog’s dinner!:banghead::D

The right front inner channel was disconnected while I checked the level of the 100Hz sine wave as it has -7.3db with a narrow Q of 10.0 on the DCX2496. The level changed as soon as I disconnected the inner right. I think it down yes it went down, (trying to recall yesterday whew!) yes and that might seem good but the 100Hz sine wave was only good at one spot on the sofa and that wasn’t good enough.:banghead:

So I connected the inner right back up and moved it around until I found position that was near to good and then turned the speaker around to face the opposite direction. The speaker has passive crossover inside it still same with the other one, so very little distinction, in fact none at all. :)

So that’s what I’ve been tackling with yesterday forgot how many hours it took, a number of hours a good fair number, sigh.:(

I’ve only tested it with music so far (Madonna) haven’t played a film to see what is missing or what needs attended too? Maybe later in the evening I’ll run a few films that I’m familiar with and see if there has been positive improvement.

Also moved humped the JBL 4645 over from its centre position since using REW and I’ve managed to get tones up from 50 to 60Hz and few 70Hz to 80Hz and 90Hz tones where before they where stuck in a bit of dip. Its only been shifted over by as much as 45” from the centre of the sub bass driver.

I also tried other positions like standing it up vertically with the sub bass driver further away from the floor and the tone was magic in the central position in the room, until you flip it back over and on its side in the original position where 50Hz is heavy at the standing up position and hard on the left side of the front, and slightly down on the right side front.

Stacking sub bass speakers is paramount to obtaining uniformly frequency response where some subs might need a little EQ with cuts only. I don’t have the room of cinema auditorium for x16 JBL subs much less x4 unless I had a video projector where I can get away with it!

If the CRT TV was in the way I could place the sub there and a few more coupled to the sides to get the smoothest frequency response with high SPL level and uniform frequency rather than dips peaks can be cut back slightly.

Smaller subs stacked up front is the logical key to maintaining solid sub bass.

The smaller sub has only been shifted a little bit towards the centre to enhance the LCRS low end with or without Dolby six-track aka 5.1.

The main large one at the moment is in a better position than before. I was worried if the sub bass was too strong at the front that it might be vibrating the flats blow, LOL. Well I tried it out last night while watching some yotube videos Star Wars isolated scores of the original trilogy performed by John Williams in Dolby stereo 4:2:4 wow some of the lows on the score vibrated nicely over the previous position. More in my chest at certain frequencies.

I’d like three more 18” and that will force me to place the LCR up higher and more or less back to square one, ain’t it just great.



http://i279.photobucket.com/albums/kk123/IndianaJones34/ImprovedLCRsub100Hz1.jpg


:happyh::tree:

JBL 4645
12-23-2008, 09:50 AM
Late this afternoon Sooty went on climbing expedition. I might not have been JBL K2 LOL but he reached the highest peak on top of the JBL control 5 LOL. He jumped up on the smaller Eltax A 12-R sub bass then up onto the other JBL control 5 then up onto the CRT TV then up onto the JBL control 5 centre front. I had to take a picture just after I noticed he was standing on the TV then the JBL control 5, little bugger. :D I had to help him down because if I jumped off he might move the JBL control 5 with his back legs and knock it flying LOL.

Maybe Sooty can promote JBL as the purrfect speaker system. :applaud:




http://i279.photobucket.com/albums/kk123/IndianaJones34/SootyclimbinghighJBLcontrol51.jpg


http://i279.photobucket.com/albums/kk123/IndianaJones34/SootyclimbinghighJBLcontrol52.jpg

stephane RAME
12-23-2008, 12:15 PM
Hello,
The sound of your system it is not too large compared to the size of your image?
Best regards.
Stéphane

JBL 4645
12-23-2008, 12:24 PM
Hello,
The sound of your system it is not too large compared to the size of your image?
Best regards.
Stéphane

Oh, that’s funny always guaranteed a laugh that one the image is small. The sound too loud! :D

I’m going to run Mr. REW in jiffy has I was only using a 100Hz tone the yesterday I’ll see where I stand for the sub bass and maybe run few sweeps over LCR I might shift the smaller sub around the front and see if I can’t maximize it further I have clear spot on the JBL 4645 I might place it on top and see if the frequency is good or bad.

Wow that Sherry ASDA custard is yummy I feel a little tipsy and its only 10.0% alcohol. Getting pissed on custard now that is funny.:D

stephane RAME
12-23-2008, 12:36 PM
Hello,
Thank you for your opinion.
Best regards
Stéphane

JBL 4645
12-23-2008, 01:17 PM
Hello,
Thank you for your opinion.
Best regards
Stéphane

Well I’m kinder of neutral at the moment must be the custard? :D

Okay just tested out the seating position with the second sub bass Eltax A 12-R and the best is ±1.8db over the seating area with 100Hz tone it was at its weakest on the floor but what of the frequencies below it? I’ll run a few frequency sweeps now and see what I can see.

I tried a location on top of the JBL 4645 results not that good then I tired several where it is placed now but not necessarily in the same space as it is now. I tried three and they produced a very low flow of the signal at 100Hz. room modes truly suck.


http://i279.photobucket.com/albums/kk123/IndianaJones34/ImprovedLCRsub100Hz2.jpg

Umm err yes this picture really sucks :D it looks really ditchy small I mean small,
Or maybe I’m starting to senile LOL. Wouldn't be too bad if I had some fabric to hang up or make frame wooden frame and staple black cloth around it the CRT TV then it wouldn’t look as bad as it does now.

I prefer the way I had it a few days ago expect the lows in the upper portion where in a bit of dip.

JBL 4645
12-25-2008, 04:37 AM
WTF! My cat Sooty is have a ball of fun this morning its running around a like blue ass fly. It only just a few minutes ago jumped though the port hole on the JBL 4645 while it slams out Madonna immaculate collection! I grabbed the camera and stuck it though the other port to get a snap shot. It then crawled out and the it ran for again and went perfectly though the hole in FLASH! I guess Sooty agrees JBL is the purrfect speaker system or it just digs Madonna LOL. :applaud:

He’s playing with the BUG now and I’ve blocked the other port up one and two, there’s no way he’s going to struggle with the top port hole, before I go [HISSS] and he backs away. talk about a strange cat that likes sub bass? I had to switch the sub off as soon as he went in it and this isn’t the first time.

He was laying down a minute ago before I changed CD to Madonna GH2 and turned the level down a few db as this album rocks.

JBL 4645
12-25-2008, 05:25 PM
A close friend just brought around a SONY KV-X2972U (27” CRT) a few hours ago which has now replaced the Toshiba (20” CRT). I’m a little speechless to say the least. He said he’ll drop the remote off later and I was thinking I have one of those learning universal remotes that I thought had malfunction and I gave it a try. (Yes it accessed the Sony menu features).

The contrast is a bit hot that produced slight bleeding on whites. I adjusted the contrast down that was fairly high on its least preset level.

Colour looks normal when compared with Toshiba. There is slight minor over-scan on the left side of the screen by a small percentage. I’ll see if I can’t adjust the (horizontal variable resistor) later on. A test card needs to be put up on it to see how much error there is on the vertical and horizontal.

Stereo sound on it is fair if not a little narrow due to distance to the seating area and the spacing of the speakers. There are a few basic modes for optimising the stereo sound with (space control) it seems a bit hockey if you ask me, so I leave it in the (off mode).

The image here makes it seem small against the JBL 4645 parked off to the side of it LOL, still it’s a whole lot clear to view than the Toshiba which is still a fine CRT television.

There are assorted modes of SCART inputs which is set in RGB mode at present to offer best picture. There is an S-video input but I don’t have an S-video lead I thought I did not sure of I gave it to my friend a few years ago, no matter I’ll get another S-video lead from D.J. electronics down the road from me. They don’t cost much.

Well I now have new problem! The LCR speakers or left and right needs to be raised up a few inches due to the height of the Sony so its looking around for any resourceful items to place underneath left and right and get the height level correct.


http://i279.photobucket.com/albums/kk123/IndianaJones34/SonyKV-X2972UStarTrekthemotionpictu.jpg

hjames
12-25-2008, 06:32 PM
Merry Christmas, Ashley -
Whoa, thats a nice upgrade!

I'd say find a short cabinet/dresser kind of TV stand and loose the barstool - looks way too tall and too tippy for that nice set!
Wow - what a nice score!~


A close friend just brought around a SONY KV-X2972U (27” CRT) a few hours ago which has now replaced the Toshiba (20” CRT). I’m a little speechless to say the least. He said he’ll drop the remote off later and I was thinking I have one of those learning universal remotes that I thought had malfunction and I gave it a try. (Yes it accessed the Sony menu features).

The image here makes it seem small against the JBL 4645 parked off to the side of it LOL, still it’s a whole lot clear to view than the Toshiba which is still a fine CRT television.


Well I now have new problem! The LCR speakers or left and right needs to be raised up a few inches due to the height of the Sony so its looking around for any resourceful items to place underneath left and right and get the height level correct.

12-25-2008, 09:50 PM
Yeah, I agree. Find something for that television to stand on. Put it on the subwoofer.

You wouldn't want your cat jumping on that thing and tipping it over.


Merry Christmas, Ashley -
Whoa, thats a nice upgrade!

I'd say find a short cabinet/dresser kind of TV stand and loose the barstool - looks way too tall and too tippy for that nice set!
Wow - what a nice score!~

JBL 4645
12-25-2008, 09:59 PM
Hey Heather

Nice x-mas day

Well I was thinking of using the original stand that was for the other SONY monitor that is now being used to support the Kenwood AVR DCX2496 Yamaha and the Alesis RA300 and more.

Well if I can figure a way of housing the rest I’d have that stand right underneath, but if I should hear a loud BANG in the dead of night, I’ll know it’s the tube that just hit the concrete floor. It should hold I’ve had a few items on that stool it good stool, a bit too high!

I’ll figure out the height for the left and right in the morning there way too low. anyway me and Sooty are getting some cat naps now I’m shattered!:snore:

Happy Boxing Day.

:happyh::presents:

JBL 4645
12-26-2008, 05:51 AM
Yeah, I agree. Find something for that television to stand on. Put it on the subwoofer.

You wouldn't want your cat jumping on that thing and tipping it over.

Jon

Now I was thinking of that but there lies the problem of two possibilities?

One the CRT might be affected with colour strain due to magnet structure, like the last SONY not that I left it stood on top I moved it straight away and placed the sub to one side.

Two vibrations might travel though the SONY due to close contact like the Toshiba that is one reason why I moved it off to the side and placed the Toshiba and now the SONY as is so there will be less vibration at frequencies around 50Hz to 70Hz when playing (sine wave tones).

So this is the way it is also the SONY stand would bring the height down by at least 5 ½ inches, but its being used at present so this is how it is for the time being.

Also the stool is within ½ inch of the JBL so there really isn’t any point, because battling with vibrates would take days, I mean days it would have to be modified strengthened to reduce vibration and I don’t fancy doing that all over again.

JBL 4645
12-26-2008, 05:53 AM
Well I’ve managed to get the height of the left and right within ½ inch that is the best I can do with what I had on hand. I used the lower part of polystyrene that holds the JBL control 1 in place in the carrying box. Again JBL control leaves something in the packing to provide control LOL.

The picture is leaning to one side we just hit an iceberg!!:eek: :D Women and cats first! :D

All I have to do now is test the sound with pink noise and a few sine wave frequencies to see what needs correcting.



http://i279.photobucket.com/albums/kk123/IndianaJones34/JBLcontrol5SONYandSooty.jpg


One thing that I noticed that was strange was the remote control I brought for £1.99p from G&T at Winton LOL its sending a signal out constantly. You can see this if you have video camera and aim the remote at it and press any of the buttons you’ll see the IR inferred light. A friend in electronics showed me this effect, that only video cameras can see the IR where we can’t, now think about that, hmmm interesting.

So I have to remove one of the batteries to prevent them from going flat!

JBL 4645
01-03-2009, 12:43 PM
Measured a simple sine wave at 20Hz with one port blocked up and walked around the flat and noticed that the bathroom some 28 feet away was 87dbc and then with two ports blocked up a level of 92dbc.

I’m just doing something to try and take my mind of the winter chill damn is that bathroom freezing cold, don’t want to get caught in there stark necked while listening to JBL. :D

JBL 4645
01-25-2009, 12:12 PM
The need for separate amplification of the x10 JBL Control 1, surrounds may go ahead at some point in time as the sides are in dire need for individual EQ as well to reduce peaks in along the sidewalls and rear wall.

I’m presently testing out the right sidewall array one at time at the listening position and some tones with sine wave (all-channels track 7, via the set-up and calibration test disc dts) in the following order at the listening position.

Rear sidewall surround +3.5db
Middle sidewall surround -4db
Far end sidewall surround 0db

No huge big deal for the right sidewall arrays.

Left sidewall arrays

Rear sidewall surround -11db
Middle sidewall surround +6db
Far end sidewall surround +9db

Whoa the left side is critical to correct as the rear one is closer to the door plus its fairly open space behind it that needs a false wall fitted that may help increasing the strength.

There are other ways to cheat around this like sticking an L-pad on each speaker but it would mean sacrificing other portions of the frequency response rather than addressing it with EQ. There is an EQ for each surround left centre back and right, but that only addressing it as whole not independently.

Now while typing this and noticing while walking around the room while rear left plays only! I noticed at while sat at the computer my body increasing the level by +6db so bass traps might also be an answer at solving multitude of these common issues.

I’ll have a tinker around with some boxes that I have in store cupboard and place a few around and see what that does to give me some idea. Bass traps cost an arm and leg these days.

JBL 4645
01-25-2009, 12:45 PM
Okay the few empty Alesis RA300 boxes did sod all at present. But here’s strange one?

While moving towards the far right hand side I noticed an increase. Then looked placed a few boxes in corner sideways and it did sod all. Then looked at what I had in that space. I then moved the disused Eltax tower so I moved it out of the way and placed it along the side of the wall. Signal went up a tiny bit at the listening position.

Then placed it to the side of the other tower and the level went up by (+6db to +7db).

Now there is no telling what this has done to the other left sidewall arrays as I need to test each one out again and the right sidewall and no doubt the fronts.

Yes this can drive a normal person insane in matter of hours unless you’ve got a real tolerance for this.

This is one other reason the flush barrier wall must be built to strength up the front and prevent frequencies going behind the speaker and into corners and that comes at moderate price to build.

JBL 4645
01-25-2009, 12:57 PM
Okay I’ve taken the empty Alesis RA300 boxes and stacked them as seen and took reading on the SPL db metre that is placed at the listening position. The level as now increased further too 0db. I’ve managed this without EQ or other a few simple things that may look untidily, but if it works don’t knock it.

I’d have test out the other speakers’ now to see what mess I’ve made LOL.

So it a baffle wall may go ahead soon as it’s been delayed for quite some time now.

JBL 4645
01-25-2009, 01:08 PM
Left sidewall
Middle side JBL has now gone up +3db
Far left side JBL has shot up by +3db

It’s enough to drive you spare.:banghead::D

JBL 4645
01-25-2009, 01:47 PM
Chapter 12 Apollo 13 region 2 DVD at (32 minutes 35 seconds) as the fuel is bumped though the large manifolds up though the centre channel exterior then interior as it moves around the command module on the surrounds at (32 minutes 36 seconds) as Fred Haise (Bill Paxton) turns his head and eyes into the direction as it sweeps around the surrounds then a breathing like sound on the left side is heard. The Saturn V is now ready to go.

I’d hath to run further tests to check the internal frequency ether with frequency sweep and plug the LCRS into one of the few tools REW or spectrumlab to see what is happening in terms of frequency.

Checked the LCR and there have been some changes to frequency at 100Hz on left and right as they have been reduced recently and now increased on the parametric EQ. Centre needed to be reduced at 100Hz as it was now too strong, so a little reduction and checking with all-channels added together with a few minor distance level settings altered over LCR.

JBL 4645
01-30-2009, 01:42 PM
My other active crossover 2WEX (2-way crossover) think its crossover is set at 500Hz not sure which type of crossover network system? It does its job but there is no way I can use this for tweeter control as it would be too strong!

I can use it like this!

Set the inputs as normal and then pass the outputs though a mixers line inputs 1 LF left 2 HF left 3 LF right and 4 HF right and then use the outputs from the mixer left and right to pass into the surrounds processor Pioneer VPS-200 which is what I’m thinking about doing.

This will provided a simple treble boost and cut control seems complicated no its basic and straight forward, thou I would prefer another DCX2496 for the surrounds and sub bass.

The picture of the inside is bit overexposed the flash as defused the PCB and that’s the fault of the camera.

JBL 4645
02-03-2009, 12:43 PM
I’ve been doing some thinking while looking over a JBL 2235 looks a bit dodgy if you ask me.

Precipitation of the low end!

How it arrives at the listening position at different intervals due to differences in frequency response and range over the seating area that should be uniform.

I tend to get spots where the tone is around the left side of my head and somewhat less on the right side. Now if I turn slightly the tone appears or seems to be equal but there are slight minor gaps between the two-seated-sofa.

Nothing to difficult to try and understand, but with one sub it does seem almost impossible to get all tones to radiate uniformly. I can get some tones to do this but not all.

I was thinking maybe multiplexing microphones because I can tackle everything more or less at the same time without having to keep repositioning a single microphone every 5 minutes!

A simple patch bay or microphone multi-mixer with inputs and outputs that can be patched into the computers RTA and simple switch or muting of each microphone to determine which parts need addressing over the seating area.

Now I can’t very well place the SONY CRT onto the JBL 4645 just not possible without the colour getting cowed-up or discoloured with magnetic damage to the CRT colour guns.

I can’t even flip the sub over to put the 18” nearer to the centre as it would be too near to the SONY CRT. Also placing it up higher will present issues with line-sight its will suited where it is. Also getting the height of the LCR lined up again and the tone of the frequency range will also change. Isn’t it a bitch?:D

I’m guessing six Behringer ECM8000 of the same microphone placed over the seating area two for each seat one forward and one placed back a bit as well as placing some in the middle so that all areas would be covered for analysis on an RTA.

JBL 4645
02-24-2009, 04:37 AM
My dad dropped around a few items this morning one such item may reduce some of the clutter in the living room with this wooden frame table thingy.

I sized up one side of it that might be suitable for the Alesis RA300 amplifiers and more.

I’ll size up an RA300 and if it fits in on one side I’ll start disconnecting the whole system and drilling the holes for the amps rake slot holes, hope they fit?

This is going to take the best part of the day and its pancake day as well, bugger I like pancakes. :bouncy:

I’ll let the CD finish then start disassembling.


http://i233.photobucket.com/albums/ee15/Evolution3417/shortcircuit1.jpg
“Disassemble! No not disassemble”! :D

I tried one Alesis RA300 and the screws is no go, so I’ll work a way around that and lay them on top of each other and there is mild heat issues at risk, I’ll keep them well vented to allow airflow around them.

Well that’s it CD as now finished and time to get cracking.

JBL 4645
02-24-2009, 08:43 AM
Time from disassemble to reassemble slightly over 4 hours.
Pink noise has been tested over LF/HF LCR and is in correct order.
Surrounds have been tested and are also in correct order.
Sub bass LFE.1 tested and in correct order.

Now this has made only slight difference in the stacking height is less depth less width just a tiny bit.

It’s just a little bit neater than before. It will have to do for now, until I can afford some racks which are long overdue and get all this in the bedroom out of the way.

JBL 4645
03-11-2009, 08:21 AM
At the present time, with more time, on my hands I’m dealing with the matching LCR yet again with the two subs playing the same range in the low end department 15Hz while the remain frequency response sweeps though up to 16,000kHz.

So far applied a frequency cut on the left channel as it was a bit high between 15Hz and 47Hz a little Q not going to talk about the rest of the sound politics too much until its finalized.

Now I have a few more things to address and attend too. Same technique of “In & Out” I get out of the room while it does the full range sweep, as to not disturb the sound waves.

Also I decided too have a little fun, but being serious at the same time.


Now you channels’ will all be using allies on this EQ. Here are your names.

Left channel you’re Mr Red
Centre channel you’re Mr. Purple
Right channel you’re Mr. Blue

Why am I Mr. Purple?

Because you’re a poof, okay.

Why can’t I be Mr. Red?

You’re Mr. Purple!



http://i279.photobucket.com/albums/kk123/IndianaJones34/jbllcr.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/Reservoirdogsletsgotowork.jpg

JBL 4645
03-25-2009, 10:51 PM
A close friend called yesterday and asked if I would like a 32” Panasonic CRT FST. I asked how much? £50.00 pounds I asked why and that I’d be surrounded with CRT he laughed and I asked isn’t that your old CRT that evidently he gave to his girlfriend and that she’s got a flat screen now.

So I said done, deal. :)

Only problem now is? What do I do with the SONY 27” CRT and to think I was just getting used to it.

I have the Toshiba 20” in the bedroom for myself and Sooty my cat. The kitchen is no good as I’m only meters away from each room. I measured/sized it up no way impossible to fit in the kitchen and besides its waste of electricity. I might put it aside on the floor in the bedroom and place the SONY in the bedroom.

Now the other issue is colour strain due to the subs on each side of the front, that’s right there placed back up front again. I’d soon find out if there’s a colour strain issue and I need my friend to stay around for while, while I try out different positions as its rather heavy to lift on your own.

Also this would change the front JBL control 5, height placement. There positioning at present is spot-on for directional hard and half dialogue panning and I’m not about to screw that up because it takes hours to get done right.

The width of the Panasonic will push the JBL 4645 over slightly to the right more, sigh. If I can get the platform built it would help with the LCR placement where I wouldn’t have to stack the JBL control 5 onto tower speakers and empty boxes just so that the height is correct.

Anyway not sure what day he’s bring it over and I’d pay him half now and another half in few weeks and he’s cool about that.

JBL 4645
03-26-2009, 06:50 PM
While looking at the new JBL LSR 2300 series which as blue LED placed in the middle of the baffle and while watching one of my favourite Star Trek original laserdisc to DVD-RW the motion picture (1979) as Enterprises leaps to warp 1, leaving a colourful light trail of colour behind it.

http://www.sonicftp.com/news/images/jbl_lsr2300series.jpg

I was suddenly thought there’s enough space behind the grill to baffle where the JBL badge logo is, what if I place a three segment LED type on small PCB glued to the back with the wires hidden. It would then produce a colourful bright backlighting effect when the lights are turned OFF.

Now one of my friends dabbles in electronics for living as he teaches this each day at school and has he’s own production company. Now all I need to get from him is his opinion on LED type and size, I’m sure he’ll find it fascinating.

I know the price of the LED’s is cheep and I only need 10 LED or maybe a few more extra?

I was just thinking what about sticking inside the enclosure I mean I haven’t seen the light-bulb fuse light up since I’ve had the JBL control 1 as I keep levels within reasonable SPL db and it takes a bit of loudness to light them up.

JBL 4645
04-03-2009, 09:38 AM
Just placed a small deposit down on an LCD Hitachi CP-X430 video projector that is going was going for £225.00 now only £150.00 to pay off as the owners other half was kinder enough to lower it to £200.00.

I’ll figure out what to do with it when I pick it up after final payment which, should be around May 2009.

Bulb is new in the projector and finding a supplier like eBay or other as it would need back-up bulb and kitty box, to save up for the next bulb. I was told the cost is around £300.00 whoa! It’s no different than a cinema projector expect specifications of course.

I’ll figure out a design to secure it to the ceiling at the back or wherever to give its optimum brightness and size width or diagonal size on diy screen.

Well its something I’ve kinder wanted for nearly almost 10 years now.

JBL 4645
04-03-2009, 10:11 AM
Just found a site that stocks spare parts wow £216 whew that’s an expressive bulb
http://www.projectorpoint.co.uk/projectorlamps/Hitachi_CP-X430_Projector_Lamp.html (http://www.projectorpoint.co.uk/projectorlamps/Hitachi_CP-X430_Projector_Lamp.html)

I’ll keep this link for reference use later on.

Can’t seem to find a pdf file or users manual on this model as of yet.

JBL 4645
04-03-2009, 10:21 AM
Found this piece of information on it. It’s just too wet my, appreciate for now.


The manual for Hitachi CP-X430 LCD projector is not from Hitachi.us because the link to the manual in Hitachi website is not found. Reason being [The link from the referring page may be either invalid, the URL may have been mistyped or the page may have moved due to our redesign.].

Thus I tried to search from other website and finally I found a copy on touchboards.com


Inside the manual you will find these aspects on CP X430:
Before use: here you can check on the content of the package
Installation: cabling and example of system setup
Operation: basic operation and menu options
Maintenance: Lamp, air filter and other maintenance
Troubleshooting, specification and warranty.
Specification of CP-X430


Item Specification
Product name Liquid crystal projector
Panel size 2.3 cm (0.9 type)
Drive system TFT active matrix
Pixels CP-X430:786,432 pixels (1024 horizontal x 768 vertical)
CP-S420:480,000 pixels (800 horizontal x 600 vertical)

Lens Zoom lens F=1.7 ~ 2.1 f=36.8 ~ 47.8 mm
Lamp 250 W UHB
Speaker 1.0W+1.0W (stereo)
Power supply AC100 ~ 120V, 4.5A / AC220 ~ 240V, 1.9A
Power consumption 410W
Temperature range 0 ~ 35°C (Operating)
Size 360 (W) x 106 (H) x 256.5 (D) mm
Weight (mass) 4.5 kg
RGB IN Video: Analog 0.7Vp-p, 75? terminator (positive)
H/V. sync.: TTL level (positive/negative)

Composite sync.: TTL level

D-sub 15-pin shrink jack

DVI (CP-X430 only) TMDS, DC: 150~1200 mV / AC: 1.56 Vp-p
TTL Level (Positive/Negative)

AUDIO IN 200mVrms, 50 k? (max. 3.0Vp-p)
Stereo mini jack

VIDEO IN 1.0Vp-p, 75? terminator
RCA jack

S-VIDEO IN Brightness signal: 1.0Vp-p, 75? terminator
Color signal: 0.286Vp-p (NTSC, burst signal),75? terminator

0.300Vp-p (PAL/SECAM, burst signal),75? terminator

Mini DIN 4-pin jack

COMPONENT VIDEO Y - 1.0 Vp-p, 75ohm Terminator (Positive)
CB/PB - 0.7 Vp-p, 75ohm Terminator (Positive)

CR/PR - 0.7 Vp-p, 75ohm Terminator (Positive)

AUDIO IN L - 200mVrms, 50 k ohm (max. 3.0Vp-p)
R - RCA jack

RGB OUT Video: Analog 0.7Vp-p, 75? output impedance (positive)
H/V. sync.: TTL level (positive/negative)

Composite sync.: TTL level

D-sub 15-pin shrink jack

AUDIO OUT 200mVrms, output impedance 1 k ohm (max. 3.0Vp-p)
Stereo mini jack

Control functions CONTROL - D-sub 15-pin shrink plug
USB - USB jack (B type)


Optional Parts Lamp: DT00471
Air Filter: NJ06131

JBL 4645
04-03-2009, 10:30 AM
Just found this brief pdf file description on the CP-X430 that gives details like screen size distances, input signals, and 16:9 mode and more
http://hitachi-homeelectronics.us/supportingdocs/forhome/DisplayTechnologiesGroup/lcdprojectors/SupportingDocuments/CP-X430_series_ds_0205.pdf (http://hitachi-homeelectronics.us/supportingdocs/forhome/DisplayTechnologiesGroup/lcdprojectors/SupportingDocuments/CP-X430_series_ds_0205.pdf)

2,500 ANSI lumens
• Native XGA resolution
• 9.9 lbs
• 2 RGB inputs and RGB
output/DVI inputs
• Manual zoom/manual focus
• Contrast ratio 350:1
• HDTV theater ready
• FCC class B
• Component/composite/S-video
• Vertical & horizontal keystone correction
• “My screen” (user programmable start-up screen)
• Reverse image function for ceiling mount
• Remote control with laser pointer
• Whisper mode 36dB
• 16:9 mode
• Digital zoom/freeze function
• Switchable IR receiver for
remote controller
• Gamma correction
• Supplied with soft case
• Kensington security slot
• Picture in picture

Model name CP-X430 series
Liquid crystal panel structure 0.9” polysilicon active-matrix TFT x 3
Number of pixels 786, 432 pixels (H 1,024 x V 768)
Resolution Video 540 TV lines
RGB 1024 dots x 768 lines
Colors 16.7 million colors
Aspect ratio Native 4:3/16:9 compatible
Lens Manual zoom 1:1.3 (F1.74 - 2.08)
Throw ratio (distance:width) 1.94 ~ 2.57 : 1
Lamp 250W UHB
Expected lamp life Approx. 2,000 hours
Brightness 2,500 ANSI lumens (2,000 ANSI lumens in whisper mode)
Contrast ratio 350 : 1
Speakers 1W x 2
Power supply AC100-120V/AC220-240V 50/60Hz
Power consumption 410W
Operating temperature 0°~ 35°C (32° ~ 95° F)
Input signals RGB VGA, SVGA, XGA, SXGA (COMPRESSED), MAC13”, MAC16”
Composite video NTSC, NTSC4.43, PAL, PAL-M, PAL-N, SECAM, PAL60, S-video
Component video 480i, 575i, 480p, 1,080i, 720p
Acoustic noise level 40dB (36dB in whisper mode)
H sync 15kHz ~ 80kHz
V sync 50Hz ~ 120Hz
Vertical keystone correction Digital keystone +/- 15°
Horizontal keystone correction Digital keystone +/- 5°
Approvals UL, C-UL, FCC Class-B, CE, TUV
RGB input Digital RGB DVI x 1
Analog RGB 15-pin D-sub connector x 2
Audio Stereo mini jack x 2
Audio output Stereo mini jack x 1
Video input S-video Mini DIN 4-pin connector x 1
Composite video RCA jack x 1
Component video RCA jack x 3
Audio RCA jack x 2 (L/R)
Control terminals 15-pin D-sub connector x 1
USB connector (USB mouse) x 1
Compatible controls PS/2, ADB, Serial
RS-232C (Serial)
Dimensions 14.2” x 4.2” x 10.1” (W x H x D)
Weight 9.9 lbs.
Supplied accessories Remote control with laser pointer, PS/2 mouse
cable, batteries (AA), power cord, RCA
component cable, RGB cable, multiple language operator/
safety manual, soft case
Lamp CPX430LAMP (Part #: DT00471)

Screen Size 4.3 Throw distance
Diagonal* Width* Min* Max*
40 32 62 82
60 48 94 123
80 64 127 164
100 80 160 205
120 96 192 246
150 120 241 308
200 160 323 411

JBL 4645
04-03-2009, 11:10 AM
Type of screen? Now I sure don’t have hundreds for screen so I’d have to look around at what is on hand and see if it can’t be put to some good use. Fabrics are not all that good it needs to have some degree of refractive gloss or neutral matt look

Perforated is important to allow the sound to pass though.

I wonder if there’s any second hand screens going or maybe new ones at revolutionary low price.

Mounting it would have to be closer to the upper middle rear ceiling.

One thing is clear thou I won’t be using this all the time, due to bulb life 2,000 hours. I’d use it for new films or the odd one now and then, but use the SONY CRT for most regular viewing, so I’d have to make screen that can be removed kinder like pull down screen but perforated.

At most its 83 days running time at full, halve that and it should give around 1 year at best. That would mean around few films once every week average is 2 hours, hmm, yeah about a 1years worth out of the bulb damn costly.

Average domestic light-bulbs don’t even cost no more than £1.00 pound today and some might last just over 1 year. Sigh, the price you have to pay for life’s little luxuries these days sigh.

JBL 4645
04-05-2009, 09:41 AM
Been looking at alternatives like pre-made video projection screens but as of yet can’t find a realistic price with a perforated screen. Costs can run as high as near to £grand.

http://www.drhscreens.co.uk/ (http://www.drhscreens.co.uk/)
http://www.smxscreen.com/ (http://www.smxscreen.com/)

I’ll have to visit fabric shop around May and see what types of white fabric that can be used as projection screen. Even some fabrics can cost quite a bit per square metre.

JBL 4645
04-07-2009, 03:09 AM
Just got off the phone with a friendly chap where I was asking for perforated screens. He said we don’t stock them and replayed some company’s that do supply perforated screens micro screens due to the different size in perforations VS distance.

I knew instantly what he meant about some customers complaining about seeing the regular cinema screens due to the size in perforations and VS distance. In a cinema front seats are at least 20 feet or more away from the audience.

In the home you’re considerably a lot closer due to the room size length.

I wanted to look at my options for screen as I was thinking about a bed sheet not that there is anything wrong with the idea, it just won’t have the refractive surface.

So I thought how about taking a hobby drill as this is for model making and drill bits are very tiny for precession model drilling. Now if I can look at sample micro perforated screen or use it as (template) placed over a none perforated screen I could drill out the parts of the screen I need.

For example if screen speaker is placed LCR at given distance width and height of speaker as well, all that I need to do is drill the holes for the width and height and yes it would take days if not weeks to do this.

Also due to drilling small perforated holes and only in three locations might, stick out like a soar thumb with kinder grey tone look, maybe?

Anyway the chap is sending me two samples to look at so I can evaluate and make decision to go with non-perforated and modify it for less of the cost or track down a suppler for perforated screens and pay a bit more.

JBL 4645
04-07-2009, 04:08 AM
One other thing I’ve been looking at to give me some ideas on the perforation hole size is the grills on the JBL control 5.

Obviously I need to have perforation holes smaller than each one on the grill, which looks to be around 1.5 2mm diameter?

Audiobeer
04-07-2009, 04:36 PM
I'm reminded of the scene in full metal Jacket when they catch the Female sniper and want to deliver some pay back......the camera pans in for a closeup and in english she begs "Kill Me"....Kill Me".

JBL 4645
04-07-2009, 06:41 PM
I'm reminded of the scene in full metal Jacket when they catch the Female sniper and want to deliver some pay back......the camera pans in for a closeup and in english she begs "Kill Me"....Kill Me".

Yeah I’ve seen it 5 or 8 times on VHS in the past.

JBL 4645
04-08-2009, 04:27 AM
Received some screen samples to compare with and I have to say the micro is more best suited.

I placed the normal perforated screen and micro screen at distance where JBL speakers, I could instantly see the differences between the two the normal stood out over 8 feet away and that’s too near. About 15 feet away it starts becoming less noticeable or transparent, so around 20 feet away your hardly going to notice it.

The micro screen was spot on at 8 feet away the holes look like (0.5 or less mm) the normal one looks like 0.7 or just a bit larger. The holes on the normal are also spaced out and guess that is what gives it away in small room.

If I had to use non-perforated screen and use a micro as template to drill micro holes with hobby drill it would take weeks.

I like the smell of the plastic between the three types.

Also rubbing my fingers or sliding them along the surface produces different frequencies.

I’ll have to try later on some sound tests with the normal over micro while hanging it in front of the centre channel and pass a few sine wave tones or pink noise see what the db ratio sound loss is.

Also been phoning around at another supplier that the chap suggested try Screenline which is an Italian make.

I’m waiting some figures on screen cost just the material I don’t want no manual/automatic screen retraction system just the screen.

JBL 4645
04-08-2009, 04:32 AM
Non-Perforated screen

JBL 4645
04-08-2009, 04:33 AM
Noarmal-Perforated screen

JBL 4645
04-08-2009, 04:34 AM
Micro-Perforated screen

There seems to be slight weight difference with the micro-screen it seems heavier over the normal-perforated screen the non-perforated screen is somewhere in-between the normal and micro screen.

JBL 4645
04-16-2009, 06:37 AM
Only £100, 00 pounds outstanding should have this around May.

Base platform contraction around late May
Baffle wall construction around June

Screen material pending on supplier that can provide an affordable rate for perforated screen/micro. If the push comes to the shove I’ll explore plan C.

Hoerninger
04-16-2009, 06:56 AM
Ashley,

do you plan something like the AlloSphere
http://www.audioheritage.org/vbulletin/showthread.php?p=247387#post247387
... "constructed of perforated aluminum that are designed to be optically opaque and acoustically transparent"?
Do you know something about the ratio covered area / hole area of your micro-perforated screen?
__________
Peter

JBL 4645
04-16-2009, 09:39 AM
Ashley,

do you plan something like the AlloSphere
http://www.audioheritage.org/vbulletin/showthread.php?p=247387#post247387
... "constructed of perforated aluminum that are designed to be optically opaque and acoustically transparent"?
Do you know something about the ratio covered area / hole area of your micro-perforated screen?
__________
Peter
Peter

The ratio size of the hole!? It’s about the diameter of small pin hole, tiny its not like the regular perforations holes on cinema screen.

JBL 4645
04-23-2009, 01:34 PM
Here are two videos and the sound to ECM8000 is not rocket science it’s a bit muffled and needs perfecting to get a near closeness to what I hear in the room or near about, but this is miles off. There is difference in the loudness between the 303Hz -0.1db and -12db 12db octave that I applied to reduce the harshness in the mid range that drives me up the wall.

The control 5 sounds twice the size now with near to fuller bass mid and less mid range loudness. The HF end is sweet enough without bending the ear.

JBL control 5 only non-sync music HP filter 303Hz -12db part1
http://www.youtube.com/watch?v=NVLAEq_ZoXA&feature=channel (http://www.youtube.com/watch?v=NVLAEq_ZoXA&feature=channel)

JBL control 5 only non-sync music HP filter 303Hz -12db part2
http://www.youtube.com/watch?v=qgRVfsVnqPY&feature=channel (http://www.youtube.com/watch?v=qgRVfsVnqPY&feature=channel)

I think I need an EQ patched in-between the MIC100 and the computer and flatten the frequency response as well as gain increase to capture a clear in-room sound.

JBL 4645
04-29-2009, 06:34 AM
My close friend just dropped his ole Panasonic TX-32PK1 widescreen (CRT) along with his young son and very youngest daughter. She was shy about stocking Sooty who ran for cover as he is an extremely shy cat.

The ole Panasonic has slighter clearer edge over the SONY CRT 4:3 that he dropped off on Boxing day last year.

Only problem now is recollecting the sound LCR matching JBL control 5 as they are now in new position that didn’t take long to find some magazines and flipping the other loudspeakers AWIA on their sides so I can the height near to that of the matching centre channel!

I can not wait until I start knocking up the stage platform around late May the very least early June.

I’m presently testing out image with the new original STAR TREK feature films and I trilled to bits with STAR TREK the motion picture in its original (1979) six-track Dolby stereo form and not that abomination director’s edition, if anyone cares to really listen you know what I’m talking about.


I’ll give it very thorough and detailed examination with A B and C sound comparison in the JBL movie sound thread later on.

The SONY CRT is now placed in the bedroom so Sooty, and watch DVD at night time.

http://i279.photobucket.com/albums/kk123/IndianaJones34/PanasonicTX-32PK11.jpg

http://i279.photobucket.com/albums/kk123/IndianaJones34/PanasonicTX-32PK12.jpg

Only one last item to get and that’s the LCD video projector which will be around May.

One other thing, the Panasonic is placed fairly close to the diy JBL 4645 and I’m surprised the it didn’t go (total discolour).

I also need the remote that will be dropped off later.

JBL 4645
04-30-2009, 07:49 AM
Just placed another payment down on the Hitachi LCD only £90 pounds left now should be able to get in another 12 ½ days. I’d need to get a sodden long S-video lead for it a damn long one too.

05-01-2009, 07:01 PM
Just placed another payment down on the Hitachi LCD only £90 pounds left now should be able to get in another 12 ½ days. I’d need to get a sodden long S-video lead for it a damn long one too.

Could you possibly get a better source other than S-Video? I've seen it used in relation to a computer desktop to the projector, and it looked absolutely horrible. It was dim, and lacked any definition. Try using a better source.

JBL 4645
05-01-2009, 07:18 PM
Could you possibly get a better source other than S-Video? I've seen it used in relation to a computer desktop to the projector, and it looked absolutely horrible. It was dim, and lacked any definition. Try using a better source.

I could work around the RGB from the scart to video projector I’d need a different type of lead or use composite but its drawbacks are artefacts on the edges of the colour.

pos
05-08-2009, 03:32 PM
Hey Ashley, it's time for an update of your front speakers :
http://cgi.ebay.co.uk/JBL-4675C-Cinema-Channel-Monitors_W0QQitemZ120417657850QQcmdZViewItemQQptZU K_Consumer_Professional_RL?hash=item120417657850&_trksid=p3286.c0.m14&_trkparms=66%3A3|65%3A10|39%3A1|240%3A1318|301%3A0 |293%3A1|294%3A100 (http://cgi.ebay.co.uk/JBL-4675C-Cinema-Channel-Monitors_W0QQitemZ120417657850QQcmdZViewItemQQptZU K_Consumer_Professional_RL?hash=item120417657850&_trksid=p3286.c0.m14&_trkparms=66%3A3%7C65%3A10%7C39%3A1%7C240%3A1318%7 C301%3A0%7C293%3A1%7C294%3A100)


The JBL 4675C provides powerful, smooth and accurate reproduction of motion picture soundtracks in medium and large cinemas.

This three monitor set has recently been removed from a prestigious THX dubbing theatre and is in a good condition to be passed on to a new home.

:D

pos
05-10-2009, 04:33 AM
... and here are the surrounds and subs:
http://cgi.ebay.co.uk/JBL-speakers-subwoofers-surround-speakers_W0QQitemZ250421935750QQcmdZViewItemQQptZU K_ConElec_SpeakersPASystems_RL?hash=item2504219357 50&_trksid=p3286.c0.m14&_trkparms=66%3A3|65%3A10|39%3A1|240%3A1318|301%3A1 |293%3A1|294%3A100

JBL 4645
05-10-2009, 04:58 AM
Cheers for the link pos :)

I’ll keep an eye on it thou if I win I don’t know where I’m going to place them. I take it they mean three x3 JBL 4675-A stage PA speakers and not one x1.

JBL 4645
05-10-2009, 05:08 AM
... and here are the surrounds and subs:
http://cgi.ebay.co.uk/JBL-speakers-subwoofers-surround-speakers_W0QQitemZ250421935750QQcmdZViewItemQQptZU K_ConElec_SpeakersPASystems_RL?hash=item2504219357 50&_trksid=p3286.c0.m14&_trkparms=66%3A3|65%3A10|39%3A1|240%3A1318|301%3A1 |293%3A1|294%3A100

The 4645 needs a re-foam shouldn’t be an issue. The 4645C looks intact. And the other speakers are those JBL as well?

I already have surrounds.:D

JBL 4645
05-21-2009, 06:24 AM
Slight delay on the LCD video projector as EMPIRE cleaned me out! I don’t want to talk about it!:D:banghead::D

Since yesterday I was experimenting with placement of LCR by bring them forwards, up to where the chimney breast starts. Now I knew the CR was fine expect L which is in bit of dip or gap due to where the chimney breast ends which is about 18” large open space! All the low end between a cretin range below around 100Hz is suck away!

Now since the L/R was in-line with each other and the L had straight vertical wall, low end was increased at 80Hz and bit low as well as bit higher above 80Hz.

I then noticed C had dropped down on the mid lows, so this wasn’t going to help. I shifted everything back to where it was and looked again to see what else I could get away with.

How about placing them up higher!?

This increased low end of the bass mid further and little trick of adding another JBL control 5 to L thou its tucked in the left hand corner very tightly and placed up a bit higher to help increase or equalize the bass mid. Only LF is sent to the additional JBL no HF.

As soon as I get the LCD video projector and start knocking up base platform at the front along with stud –wall fixed in the left hand corner. So I’m somewhat slightly delayed but there’s no need to rush.

Further analysis.

I need to explore the fronts a bit further before knocking up the base platform.

The fronts look like this at the present moment.

I tried the camera phone and the picture wouldn’t (save as) when reformatted in size and filed under a new name, weird? Also it was grainy I mean it looked dreadful. So I used my smaller 3.0 mega pixel camera over 5.0 mega pixel, weird? Must have had the settings wrong on it, but I can’t really be asked to toy around with it, it works great for video and sound, there you go.

Anyway height as risen from 41 ½ inches to 51 ½ inches about 10 inches seems to make difference in frequency response to listening distance. It’s slightly stronger if the SPL db is brought forwards from where the sofa is.

The LCR may need a slight downwards tilt and little toeing in on the left/right.

Sooty is showing interest to the new locations as he sniffs around the JBL 4645, looking for a way to crawl into the port hole I’d imagine?:D

JBL 4645
05-22-2009, 10:18 AM
I’m not entirely sure as of yet if the new, new placement of the subs has made any improvement in the low end, until I run a few frequency sweeps with REW to clarify this as valid improvement.

I know from listening to this music track the low end is on my chest more than it was before and at lesser level as well.

From the look of the spectrumlap frequency response the music track is within the range of the original mix so I must be close or maybe the placement of the sub VS the sofa seating position is idea enough, satisfactory enough too place deep low end on the chest and deep rumbles that vibrated my stomach and sofa as well.

SPL db level was showing tighter response slightly woken up response rather than the usual laidback lazy response.

I’d have to run a few frequency sweeps now and see what mess I’ve created?

I need to practice on my microphone techniques a bit because the sound is only being picked up oddly enough by the ECM8000 and yet it sounds distant on the video. The frequency graph waterfall looks normal.

JBL music test with Spectrumlab
http://www.youtube.com/watch?v=b1kOjPOKcxo (http://www.youtube.com/watch?v=b1kOjPOKcxo)

JBL 4645
05-22-2009, 11:34 AM
There defiantly seems to be valid improve improvement in the “new, new” location to sofa position. Boom seems reduced slightly and the frequency REW graphs looks different from previous ones

I’m testing (original motion picture DVD) Star Trek the Motion Picture 1979 six-track Dolby stereo chapter 9, “wormhole” out at the present moment.

I did rough quick REW and applied some filters I’ll make the changes later on no rush at the

JBL 4645
05-22-2009, 11:48 AM
I placed the ECM8000 a few feet forwards away from centred sofa position and this wasn’t an all too bad frequency sweep there’s less dips unlike that slim dip at 65Hz which can be improved.

I think I’m making some positive headway here I don’t know why I didn’t stuff the big ole JBL 4645 in that corner months ago.

Question I now face is what do I do about the base platform and the false wall to placed in the left front hand corner? Will the false wall make a huge difference once I get around to building it, or will it problems be the same or will it create new and challenging difficulties to resolve or will it increase and make for better sub bass placement.

I’ve moved the LCR back down to where they where a few days ago, they wasn’t matching the onscreen image thou the are shy under a 1 foot from the image on the CRT.

I’m not going to rush into this without looking at the obstacles that I must first analyze before spending an odd £100 pounds on building materials that might go to waste. I need to treed very carefully look at all the angles and pitfalls to model a better sound into this problematic room.

SUPERBEE
05-22-2009, 11:49 AM
*Checks thread for incriminating pics*

JBL 4645
05-22-2009, 12:09 PM
From the looks of SPL dbc weighting in relation to the barograph response on the RA300 it looked normal as some of the peaks built up in layers and layers as the Enterprise hurtles towards an asteroid. There was mild boom but most of the 40Hz upwards and few new extra lows on the LFE.1 track dropping below 30Hz which are very mild on the LFE.1 track mix.

Chapter 11 the Vulcan shuttle rumbled roared, I mean thundered with positive cinematic feel.

I might try some more Madonna now that she’s practically on my lap :smsex:with Live to Tell, it felt good, better than before.

JBL 4645
05-22-2009, 02:17 PM
I played the opening titles to Arachnophobia (1990) which I saw at CIC/UCI High Wycombe via the JBL THX screen which was totally out of this world sounding in many ways untouchable, that the low end was incredibly deep; it was like someone sitting on your chest! :)

I came near on the feel it sounded felt better with sub bass extension LCRS than previous with sub placed on the floor in the same corner. There’s bit of dip at 82Hz/83Hz that needs addressing too.

I’ve only taken one REW sweep. I’ll take few more tomorrow, at different locations forwards and few inches upwards. I’m thinking about rising the sofa up a little bit.

There was notable beat attack as the helicopter moved over the waterfalls followed by the deep bass heavy Trevor Jones score. Boom seemed on the lesser side and thou the Eltax A-12R doesn’t have barograph power display it seemed to be within limits.

Might do some waterfalls in-room and direct from the LCR fronts as that is where most of the deep low end resides from during the opening. LFE.1 is sparingly used in this film.

JBL 4645
05-27-2009, 05:51 AM
Well I’ve finally picked up the LCD video projector and so far even on temporary bed sheet that I attached to some cable truncking fixed in front of the JBL control 5 well almost.

I have to size up the image and start building screen that I can flip up with easy so that I can use the regular CRT screen for viewing.

The LCD video projector is noisy and I have cure for that!

I’m thinking about the knocking a small hole into the wall. Depth is around less than 5 inches so and its mostly plaster wall so it will be rather easy.

I’ll look’in to finding a port window of sort that will be within the requirements. It can’t be no bigger than a few feet so a simple 12 inch square piece of glass or plastic placed on both sides with access to remove it.

Image seems to be mostly up on the screen unlike the CRT widescreen TV that crops off the sides! So I’m rather pleased.:bouncy:

The only downside is saving up now for the next bulb as this should last about year before changing it.

I’ll post a youtube link that I made earlier on.

Oh, it’s not going to change my life but I’ve waited for nearly 10 years to get a video projector so, there it is.

Image is from Raiders of the Lost Ark 1981 scope 2.35:1

JBL 4645
05-27-2009, 06:51 AM
Hitachi CP-X430 LCD video projector
http://www.youtube.com/watch?v=abrwy9mij9M&feature=channel_page (http://www.youtube.com/watch?v=abrwy9mij9M&feature=channel_page)

hjames
05-27-2009, 07:15 AM
Hitachi CP-X430 LCD video projector
http://www.youtube.com/watch?v=abrwy9mij9M&feature=channel_page (http://www.youtube.com/watch?v=abrwy9mij9M&feature=channel_page)

Nah, you need an audio recording of an old 16mm film projector chattering away to really get a sense of the filmic qualities of your movie!

or mebbe a 35mm projector

or for a grand event, the sound of a 70mm projector chattering!

You could even mix it into your rear surround to give you that grand cinema feeling!

JBL 4645
05-27-2009, 09:23 AM
Nah, you need an audio recording of an old 16mm film projector chattering away to really get a sense of the filmic qualities of your movie!

or mebbe a 35mm projector

or for a grand event, the sound of a 70mm projector chattering!

You could even mix it into your rear surround to give you that grand cinema feeling!

LOL if I wanted that I’d go to the Empire Leicester Square screen 1, where I don’t have to worry about expensive running costs.

One think is clear the sound to image matches up with creditable realistic, yeah sure its not even close or even on par with what Empire is running or most home cinema/theatre unless its costly state of the art digital type, and does the user make a profit on it.

This alone will cost £250.00 each year.

Now lets say for argument sakes I visited Empire once a month for 12 months it would easily set me back £360 pounds, now then!

£250 pounds for a halogen bulb, fine with me.

My living as ten JBL control 1 surrounding the listening area and it does sound wicked for £250 pounds, there it is again “£250” something about that number, fascinates me.

Watching IMAX THE DREAM IS ALIVE at the moment it looks okay its not 15 perf 70mm but it looks better with little loss of the image on the sides as I pointed out earlier.

The sound is wicked when played back with centre back as you can hear a few centre phantom sound images like reporters asking questions at the briefing.

Check it out on your JBL set Heather it rocks! It’s called THE DREAM IS ALIVE and let’s keep it that way.

I’d prefer if studios quit add edge enhancement :banghead: to DVD titles as I can see the edging far clearer than on the small CRT widescreen, also the aspect ration looks pants on the widescreen CRT.

The grain structure I can see on the image with this video projector because its magnified by about 5 times?

JBL 4645
05-27-2009, 09:32 AM
There is bucket mouthing on these videos so if your Mormon,:D cover your ears now!

Sizing up image of video LCD projection screen
http://www.youtube.com/watch?v=ng8myvSZXZQ&feature=channel_page (http://www.youtube.com/watch?v=ng8myvSZXZQ&feature=channel_page)

Sizing up image of video LCD projection screen part 2
http://www.youtube.com/watch?v=F3oqkaCMWgI&feature=channel (http://www.youtube.com/watch?v=F3oqkaCMWgI&feature=channel)

JBL 4645
05-27-2009, 08:07 PM
Well I’ve compared a screen capture from Logan’s Run and there is a slight bit of cropping on the sides of the LCD video projector. Note the red virtual lines on the screen capture. That’s roughly where the image stops.

On the CRT Panasonic its considerable worse note the virtual yellow lines is where the image stops.

jcrobso
05-28-2009, 10:55 AM
To compensate for aging of the CRT, TVs are usually set to over scan. John

JBL 4645
05-28-2009, 01:33 PM
To compensate for aging of the CRT, TVs are usually set to over scan. John

I see.

JBL 4645
06-02-2009, 11:37 AM
I’ve stripped the temp screen (bed sheet) down to widen it out a bit by a few feet.

Also I have the front fixing to the plastic cable trunking that I’m thinking of making slight curve on the outer edges just beyond the screen fronts.

Image onscreen is Poltergeist (1982) scope 2.35:1

Oh, the camera Vivitar ViviCam 3785 makes the image go green I need to find the best settings under dark light.

It should only take me another hour or so.

I can just make out half the image with slight subtlety of the other portion of the screen compared with the projected image.

JBL 4645
06-02-2009, 01:17 PM
Well this as only gained an extra 11 inches a bit less than I thought.

Size before was horizontal at 60 inches 5 feet now at 71 inches 5 feet 11 inches.

I guess once I get around to knocking a hole in the wall that will do three things hopefully. One is get the projection beam out of the way as its only on low evaluation at the moment standing behind the sofa.

Two isolation of fan noise

Three it may increase image by a possible further 5 to 6 inches.

This temp screen allows me to see just how far I can expand the image.

Also I was placing image onto the perforated screen samples to get some variance levels on its brightness to contrast.

Thou the bed sheet is slightly low on brightness contrast its still impressive. I’ll look in at fabric shop because something tells me a perforated screen at nearly 100 inches would cost hundreds pounds

I’ll look at different types of white fabrics when I get around to it. I need to see which ones or samples to take home and try out with the projection image, projected on to it.

JBL 4645
06-02-2009, 01:21 PM
A high angle looking down on LCD video projector as well as front corner long view.

JBL 4645
06-02-2009, 04:12 PM
Onscreen action with excerpts from The Empire Strikes Back (1980-1997-2004) was thrilling to see again. Only grudge I have is my hair getting in the way of the lower portion of the unused screen.

I played a few moments from Jaws 2 and Casablanca before switching off the projector and using the CRT TV.

Images keep coming out with tint of green without the camera flash off?

Ingrid Bergman, looks green in the face at hearing “As Time Goes By.”:D

JBL 4645
06-05-2009, 05:57 PM
I’ve been taking a few naff pictures with my naff ViviCam 3785 finding the correct setting is a case of trail and error.

Temp screen lifted up while I have The Fifth Element on pause on both CRT direct view and LCD video projector.

You can see how the setting on the camera affects the image due to possible light frequency and contrast level of each screen image.

Auto means auto mode on the camera or is that auto balance for the white light.

JBL 4645
06-05-2009, 06:03 PM
You can see I managed to persevere with the settings and this has well almost a slightly lesser green when taking picture of The Fifth Element, lousy film great sound effects editing.

JBL 4645
06-05-2009, 06:06 PM
Now this camera mode really sucks with yuck! That is how most outdoor pictures turn out when cloudy I get frigging pink sky or pink whites.:barf:

JBL 4645
06-05-2009, 06:10 PM
Daylight setting isn’t too bad. My dad says it’s the lens that makes a difference I think he’s right and I may need a smarter camera that is both affordable and with focus control or maybe one of those SLR digital cameras! I guess I have to make the best out of the one I have because I certainly don’t have hundreds for new camera.

JBL 4645
06-05-2009, 06:16 PM
It’s kinder gotten off to pinker colour again. This is the first time I’ve really looked back at the images that I took yesterday morning.

I had another thought and between the last comment above, I’ve forgotten? It’s the damn heat :D that’s what it is! It feels like I’ve got the heaters turned ON and the window is open, not venting very well.

JBL 4645
06-05-2009, 06:19 PM
This setting has kinder turned it bluish as it does most times.

JBL 4645
06-05-2009, 06:25 PM
I’m kinder between which settings to chose between these two because they each look okay over the other settings that look awful.

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=39830&stc=1&d=1244250073
(http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=39830&stc=1&d=1244250073)
Daylight as slight tiny value of pink where auto is just a bit white thou I’m sure I can see an ultra tiny amount of green?

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=39832&stc=1&d=1244250450 (http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=39832&stc=1&d=1244250450)

JBL 4645
06-05-2009, 06:46 PM
Other things I’ve been up to yesterday was getting the Pioneer CLD-1750 to start-up! It had some kinder fault where I could hear the laser mechanism bobbing up and down but no action on the spindle motor side.

I got so frustrated I decided to remove all from that god awful box that that its all being standing on for the past 20 plus months or so.

I found a metal rack dumped outside near the rubbish bins about 6 weeks ago and thought it would make nice bedside place to place my cup of fruit juice.

I was wrong!

I sized up the laserdisc player and then compared that measurement to the rack spot on!

I then proceeded to removed and undo the screws on laserdisc player and DVD player to give them a quick little clean.

The laserdisc player must have had some dirt or build up of dust over the lens or the photo-cell I think? It’s the glass like plastic to beside the laser.

JBL 4645
06-05-2009, 06:48 PM
The DVD player only had few minor issues not bad running its had for nearly 5 years at £25.00 pounds.

JBL 4645
06-05-2009, 06:55 PM
After I managed to get the laserdisc player starting back up I ran a few laserdiscs films.
The Last of the Mohicans
Star Wars
Terminator 2 first edition, THX laserdisc special edition

Pictures of The Last of the Mohicans and Star Wars episode IV on CRT Panasonic! Oh, there seems to be 14:9 mode on the Panasonic that only shows up in different mode to input on the CRT.

The image was only lesser cropped on the sides in 4:3 and not so much in 14:9 and yet 16:9 really I mean what is the use of making it, even calling it a widescreen.

Cinema is the original medium for true widescreen and scope films.

JBL 4645
06-05-2009, 07:01 PM
This the rack that I used and this is what it was like before and after. It will do for now until I have the dosh for a few 19” racks on wheels to place most of this in the bedroom, when ever that day comes around?


BEFORE!
http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=37497&stc=1&d=1235489898

AFTER pictured below

I also cannibalised a scart to stereo lead that was just a shy under 5 meters and cut the ends wired the cables up into one long length and used it for (Composite lead) yuck you get rainbow on the whites during end credits!

Also its noisy over S-Video thou RGB would be better colour source.

The lead is connected up to the AVR so I don’t have to keep unplugging the sodden lead for different video types. It’s a pity the Pioneer CLD-2950 laserdisc player needs a part as its got an S-Video output.

I fired up the H-Fi VCR as its been laying dormant for 20 mouths as an audio limiter for the surrounds. Yes it can done, now then.

It started up a on the wonky side but soon woke up. The image is just ghastly looking at InnerSpace on the LCD video projector, the VHS tape was slightly jaded a bit for over 20 years.

The Dolby stereo 4:2:4 mix was okay a bit on the soft side in level over the DVD region 2 six-track version.

So I trying to think of way around, that is cutting a few corners for the leads patched up to the AVR so I can switch more flexibly between each video to audio source.

Now I know the Cello DR-810 will kinder convert the Composite signal into less nosier image when patched onto the input and using the scart output that is obviously running in an RGB mode.

Because I don’t see the common rainbow effect!

Now the Cello DR-810 as component (inputs and outputs) as well as S-video. The AVR Kenwood KRF-X9050D THX select supports only component S-video and RGB!?

I need to sit down and think because I don’t like rainbows, thou I don’t mind its when its noticeable, there has to be simple way?

JBL 4645
06-05-2009, 08:03 PM
I’ve been looking at the manual for the Kenwood as I’m buggered to know where I placed it?

http://manuals.kenwood.novenaweb.info/languages/EN/support/manuals/KRF-X9050D%20(EN).pdf (http://manuals.kenwood.novenaweb.info/languages/EN/support/manuals/KRF-X9050D%20(EN).pdf)

MikeBrewster77
06-05-2009, 09:09 PM
Ash -

Here's your chance to get a pair of the very rare Control 5 Plus (and they're relatively close to you!) I know you've lusted after them for quite some time :D

http://cgi.ebay.ie/ws/eBayISAPI.dll?ViewItem&item=220425643070&ssPageName=ADME:B:EF:IE:1123

Good luck, though I know you've got some money tied up in the projector and trying to get a proper screen at the moment.

Best,
- Mike

JBL 4645
06-05-2009, 09:56 PM
Ash -

Here's your chance to get a pair of the very rare Control 5 Plus (and they're relatively close to you!) I know you've lusted after them for quite some time :D

http://cgi.ebay.ie/ws/eBayISAPI.dll?ViewItem&item=220425643070&ssPageName=ADME:B:EF:IE:1123

Good luck, though I know you've got some money tied up in the projector and trying to get a proper screen at the moment.

Best,
- Mike
Well that sounds like a rather too tempting offer but I’m skit buggered until at least July Empire not only trilled with its ultimate 56KW JBL it also buggered up my day!

Wait a moment I’ve seen that picture before!:blink:

Hold on I’m going to cross check the boards back in short jiffy!

JBL 4645
06-05-2009, 10:05 PM
Take a look at this thread and the user hasn’t been back on in months (Last Activity: 05-23-2009 07:24 PM)
http://www.audioheritage.org/vbulletin/showthread.php?t=23835&highlight=jbl+control (http://www.audioheritage.org/vbulletin/showthread.php?t=23835&highlight=jbl+control)

No don’t call me paranoid I smell something rotten to the core with that eBay listing! I smell SPAM! So thanks but no thanks this really f6*)king pisses me off to read this BS in the early morning hours!

If some f6()king wanker :biting: is going to SPAM at least get a f5()_king :biting: brain first! I don’t miss a god damn thing!

I told the user if he sold them! If it is in fact the same user or some cheap lowife scum spammer, no I’m not in the least bit interested now after seeing the same picture, get the picture!


f6uk eBay!:biting::biting:

Right now I can really set my cat onto spammer have its eyes clawed out and its fingers crewed off!:biting:

I don’t give a flying super scum f%*ck if its legitimate it’s the same picture the member posted months ago and its hardly original, at least take new pictures or do some f%(_king cut and paste!:biting:

JBL 4645
06-05-2009, 10:23 PM
I’ve got a mind to go over to eBay and f%(king black list that auction as bad news SPAM!:biting:

hjames
06-06-2009, 05:22 PM
You keep saying SPAM - you really have no idea what SPAM is, do you??
Spam is phony email trying to sell you something ...
eBay auctions are not SPAM - there is no email involved, phishers are a kind of email that tries to trick you into logging into a stolen or fake site.

Fake auction stuff is a SCAM - not SPAM ...

And those cheeseball images you use for signatures .. gawd!



Take a look at this thread and the user hasn’t been back on in months (Last Activity: 05-23-2009 07:24 PM)
http://www.audioheritage.org/vbulletin/showthread.php?t=23835&highlight=jbl+control (http://www.audioheritage.org/vbulletin/showthread.php?t=23835&highlight=jbl+control)

No don’t call me paranoid I smell something rotten to the core with that eBay listing! I smell SPAM! So thanks but no thanks this really f6*)king pisses me off to read this BS in the early morning hours!

If some f6()king wanker :biting: is going to SPAM at least get a f5()_king :biting: brain first! I don’t miss a god damn thing!

I told the user if he sold them! If it is in fact the same user or some cheap lowife scum spammer, no I’m not in the least bit interested now after seeing the same picture, get the picture!


f6uk eBay!:biting::biting:

Right now I can really set my cat onto spammer have its eyes clawed out and its fingers crewed off!:biting:

I don’t give a flying super scum f%*ck if its legitimate it’s the same picture the member posted months ago and its hardly original, at least take new pictures or do some f%(_king cut and paste!:biting:

JBL 4645
06-07-2009, 11:56 AM
You keep saying SPAM - you really have no idea what SPAM is, do you??
Spam is phony email trying to sell you something ...
eBay auctions are not SPAM - there is no email involved, phishers are a kind of email that tries to trick you into logging into a stolen or fake site.

Fake auction stuff is a SCAM - not SPAM ...

It’s the same thing to me and its inviting in capital letters TROUBLE!

Read my signature.

I’m fanged with all the weekly spamming scum of scams of spam in my god damn in-box and I’m so now, fused fanged to teeth with it!:biting:

JBL 4645
06-07-2009, 01:34 PM
Just asked called my dad, as he was in bed yes at this hour, if he had in any of spare timber at the school. “It’s all gone!” “We had big clear out.”

I then asked if he knew if B&Q had anything like small port windows at 12 inches square or under, didn’t know as he doesn’t go there anymore, well that doesn’t surprise me. LOL

He then said "why not try a picture frame."

Wow that’s a brilliant idea dad, thanks.:applaud:

So I know where in town to buy a cheap frame! So I’ll look into that around July/August has I’m extreme low budget at the moment with expenses.

So now that I have that issue sorted all it takes is cutting back wall out for the required size.

JBL 4645
06-07-2009, 02:06 PM
I’ll get an all day bugger you Yellow Bournemouth bus travel ticket as I’d like to pop back to Winton in the afternoon and have look at (White fabrics for the video projection screen) to see which one comes close to the screen samples that I’ll take along with me.

The material has to be transparent translusive as possible to allow parcel high frequencies to pass though the rest is fancy EQ technique to compensate with the minor roll-off.

Also the fabric has to be as smooth as possible I can’t have too much visible threading, which is common to the temp bed sheet that I’m using.

There are plenty in Winton so I’ll scoot around looking for the best and the lowest cheapest price.

No I won’t be buying as of yet, I’m not in the position to make those choices at the moment, not until at least August.

JBL 4645
06-07-2009, 03:10 PM
Its not the only film and I’m sure it bugs most alike because it looks totally unnatural on the video transfer. I’m almost positive I don’t see this yuck at the original medium called cinema.

T2 is an excellent film sequel but the video transfer is the same on laserdisc to THX laserdisc and DVD I’m just about ran out of patience’s with this green smearing. It’s the same on The Abyss and Titanic! I’m sure I have few more titles maybe True Lies maybe its James Green Smearing Cameron signature?:barf:

Screen captures direct from powerDVD

JBL 4645
06-07-2009, 03:12 PM
I’ve got Cape Fear running on the LCD video projector and noticed thou I’ve watched this film so many times since early 1992 at the Empire in THX then on VHS and laserdisc and now DVD.

Notice when Sam uses the touch to check outside his home to see if Max Cady is hanging around.

The flashlight looks spot on was it moves around and directly at the camera thou, that isn’t the issue it’s a neat transfer over the yucky puck T2, The Abyss has the same issues and titanic as well during the deep sea dive at the start as the lights on the submersibles pass by the camera, the video transfer is dreadful, on both editions.

The blue effect around the light is normal with lenses and shows up on film. It’s the green that is out of order.

JBL 4645
06-07-2009, 03:15 PM
I’m really chuffed with this transfer of Cape Fear. :) I’ll be keep a close eye out for more green offending searing effects because it really ruins the film/DVD.:barf:

JBL 4645
06-07-2009, 04:38 PM
Just noticed during the high intensity of lighting on Cape Fear itself a several green smearing effects! It would appear this is film to transfer issue.:banghead:

JBL 4645
06-07-2009, 05:53 PM
I think the issue lies between the blue? Most scenes in Terminator 2 and others have blue like colour and when bright hot white light is present in the scene something kinder gives a green smear.

JBL 4645
06-08-2009, 12:22 PM
I took a few pictures late of and in the early hours of today Cape Fear (1991) with my dad’s camera Samsung. it was slightly better at the screen capture thou some artefacts managed to get onto the image. The image looks kinder like photocopy on cheap happy shopper paper.

But at least its better than my camera ViviCam 3785 where the image just came out too damn dark.

I just can’t get over how it sounds without having to stare at JBL speakers rather than let the magic of JBL make the whole image come to life.
:applaud:

JBL 4645
06-08-2009, 12:37 PM
I just like to get the screen a bit winder and that’s down to how far I can stretch the image once placed in the kitchen. If it only happens too be a few inches extra then so be it.

Plus the screen needs to be as tight or close to the screen fronts which isn’t the case at the moment it’s more than a few inches away at 10 inches so a few more inches in at 3 inches away from the speakers should be spot enough and that should gain at least few more in the size., maybe taking image to 77 inches or 6 feet 5 inches maybe?

JBL 4645
06-09-2009, 04:51 PM
I’ve been looking into a what tradeoffs I get with the picture frame that I have that holds Star Trek generation 35mm film cells. LOL I thought hmm why not play a few extracts from it on DVD and see what will happen if the plastic is placed in front of the lens?


Well it kinder lowered the light level so I might have to find a cheap one that has glass and then try it again to see how much trade-off there is with it.

Other than it the refection from it was making my cat curious as he sees the light bending around the walls LOL.

The phone camera is charging up at the moment so I can’t use that to take a clear picture in the dark, and my regular camera doesn’t see that well under low light conditions as I was going to take picture with and without the plastic glass frame while the image is on the bed sheet.

Maybe later on when its fully charged up.

The bottom is out of focus as I only have one pair of hands as the image was reflecting or inverted onto the wall behind the LCD projector.

JBL 4645
06-09-2009, 04:57 PM
Fabric looking today! I’ll have a look after I’ve done the shopping and other personal priorities first!

I’ll take along the screen samples that I have to see what tradeoffs I’ll be dealing with, before shelling a small fortune has this has to be achieved on tight low budget.

JBL 4645
06-10-2009, 07:16 AM
Well that was a rather exhausting look around at three different fabric store shops while comparing the silly over the top cloud 9+ dreamland prices of micro perforated screen with different translucent whites.

The first shop I visited was near too the white level but not close enough to what was needed.

The price was right nothing wrong with that.

The second store had a white like fabric along with nice shine to it not over the top shine just a nicer look to the bed sheet.

The price was right also!

The third and last shop was spot! I found what I want when I have bit of money spare for the required 1.50 metre by 60 inches at £2.35 (white lining) its not too transparent its just right and that’s what I’ll go for in the next few weeks.

I’ll post pictures of the samples I have later on as I just got in and need to rest before taking pictures and uploading.

It pays to shop around!;)

Also I brought couldn’t resist two small simple picture fames (glass) for the port hole windows at £1.89 each.

JBL 4645
06-10-2009, 09:01 AM
STOP THE PRESS!

Just got off the phone after another phone around and

HANKNESS SCREENS

Has convinced me to go with a rough price guess of £110 pounds http://www.audioheritage.org/vbulletin/images/icons/icon14.gif for what I need thou I’d have to re measure the when the projector is in the kitchen for a new size as I need to be spot on!

(MSP) Micro Super Perforated

But £110 for a rough 5 height by 100 inches is cool and micro super perforated.

All that stands in the way now are the sodden bills! I need to get those buggers out of my sodden way so I can start saving up and build my dream small home cinema to enjoy!

http://www.harknesshall.com/datasheets.htm (http://www.harknesshall.com/datasheets.htm)

It’s incredible how Stewart screens charge cloud 9+ silly prices for a non-profit home cinema! http://www.audioheritage.org/vbulletin/images/icons/icon13.gif

The fabrics as good as they are will have some slight minor imperfection thou the last type the (white lining) isn’t all that bad over the bed sheet its got minor threading!

Anyway just been speaking to a friend and I mentioned the wall the cut out for the projector and he said “no don’t do that!”

He thinks its something other than hollow as this is his field, you know what mean.

So he may have look at it and help me out since I’m going to help him out in his garden 150 feet! It needs cutting down to make it look nice, as its but rugged looking if you know what mean?

Well that’s that for today a new plan a new mission.

JBL 4645
06-15-2009, 01:27 AM
Only a pitifully 11 dts laserdisc titles it would have been more if production hadn’t stopped in the US.

Godeneye (1995) performs well even with centre back surround that was on of the first demonstrations I tried back in (1998) with Millennium dts 2.4.6 decoder processor with surrounds patched into the Yamaha DSR-70 Pro-logic. Its action was fast freeing the centre phantom from the stereo surrounds and sending it to a very crude around of matching speakers that I ripped out of shopping store that had closed down.

The tank scene was one of the highlights with wreckage skidding along the sides thus freeing other sound elements has came towards you and crashing behind! Then Bond straightens his tie, nice one.

Jurassic Park (1997) the Lost World was great at the time thou the silly last half of the T-Rex stomping and rooming around the streets was ridiculous. The footfalls and bangs crashes and rolling deep, deep, deep low end rumbles is extremely thrilling god knows what this must have sounded like at the Empire Leicester Square! In the home it violently vibrated the floorboards joists to angry neighbours as it travelled into the semidetached building.

Well at least I know the JBL 4645 was doing its stuff.:D

Last Man Standing (1996) is brutal no nonsense (shoot them up) action adventure as Bruce enters a small town out in the middle of no where? He’s soon troubled by the towns gang that bust his car up, on the first day then he looks for means of settling the score with white knuckled pistol shootouts with plenty of trigger recoil to satisfy most bass and sub bass heads.

Daylight (1996) is sheer bass sub bass overload its jam packed with well engineered dts mix that’s trilling from the start to the very end of the laserdisc. LCR fronts offer realistic amounts of directional sounds and well focused dialogue intelligibility. Stereo surrounds work well with centre back on this one so give it spin as Sly rigs the incoming water into the tunnel as the rivets start to give under the tremendous water pressure overhead, then fires the explosive! Wham!

Watch the levels I mean watch! The levels on the LFE.1 track if played too loud it will do damage!

Born of the Fourth of July (1989) I seem to remember seeing a dts demonstration 35mm test film at Warner Village 12 screen Bristol, when working for them years ago. The film was released exclusively in 70mm six-track Dolby stereo SR and might have been a good candidate for short demonstration has (Ron Kovic) played by (Tom Cruise) battles in the last final moments before being fatally wounded. Action of the riffle shooting outwards with so much individualism in the sound as well as reloading while still under fire! Mortars continue to drop around and impact in the distance with deep thud! Helicopter point looses control and burst into fiery ball of flames!

While Kovic yells out at the enemy along with John Williams score priceless, then takes a rapped thump! Thump! Thump! bullet to chest, and the score goes mute, with the sound of Foley as Ron falls back paralyzed from the waste down onto his back, unable to do thing.

LFE.1 is sparely used on this film so don’t expect a lot, expect plenty from LCRS.

Tomorrow Never Dies (1997) saw this in dts screen 5 thou it could have been screen 6 as both are identical I think my friend must have thrown the tickets away, this was around December if I remember correctly?

Hmmm, anyway the sound was of average playback the cinemas at the time believe it or not had no sub bass extension for Dolby stereo A and SR types much less LFE.1 discrete track. The LCR was bit underwhelming with the EV stage fronts lacked any decent slam of bass mid it was as if UCI Tower Park didn’t have the bottle to show-off.

Directional sounds are more or less identical on the dts laserdisc I seem to remember sitting front and center while my friend was sat middle centre row. Why am I talking about UCI the presentation sucked it wasn’t THX it sucked!

The home presentation just bloody loud JBL lots an lots of low end over LCRS and LFE.1! Opening titles by Cheryl Crow was very cool.

JBL 4645
06-15-2009, 01:34 AM
This is nice favourite pity I don’t have Dolby AC-3 with RF conversion on my two Pioneer laserdisc players as this would sound neat. I have the region 2 DVD version and it’s about the same for images doesn’t appear to be cut. Only difference that stands out is the PAL speed-up but I can just about tolerate it.

This was laserdisc of the week or month when I purchased it years ago oh, 11 years ago, wow! I haven’t played this in a few months now.

JBL 4645
06-15-2009, 01:40 AM
A few more of the very few that I have leftover in my rather small laserdisc collection now.

Nice thing is the audio digital PCM and listening and comparing the same title side by side while switching though the different modes from (digital to analogue) noting the SPL db difference is a few db lower or higher over the region 2 DVD from Dolby digital multi-track to analogue Dolby 4:2:4 where the sound is compressed similar to laserdisc analogue mode deepening on the film and the amount of compression used?

JBL 4645
06-15-2009, 01:44 AM
I like the gatefold laserdisc covers often holding two laserdiscs some jackets have two laserdiscs stuffed inside the cover.

More to come

JBL 4645
06-15-2009, 01:50 AM
Some laserdisc titles I transferred to DVD-RW since I didn’t own it on DVD or some titles on DVD where just so dreadful they where just unworthy.

Some out there on region 2 DVD just ether get hacked up like Predator and then the rotten BBFC and then you get a BS uncut edition several months later that was the same cut as the VHS tape the same cut as seen in the cinema and you just have to think these wankers at the BBFC are taking the piss along with the studios out there.:biting:

Most of the laserdiscs are NTSC imports that was until the British customs turned queer overnight I mean homo queer :smsex:because they along with the rotten British government ruined it for laserdisc collectors and practically killed the market in the UK. PAL laserdiscs where often dodgy poor image and can only support digital PCM sound.

There is no analogue space I think this was due to the image encoding so Dolby digital was only supported by NTSC laserdiscs at the time, well still is only laserdisc has retired.

JBL 4645
06-15-2009, 02:08 AM
More gatefolds laserdisc covers. The Indiana Jones flicks isn’t too bad on laserdisc and there are some differences between the Dolby mix DVD/laserdisc. Raiders of the Lost Ark in few places lacks some of the low end when Indiana finds that Marion is alive in Nazi tent on the dig site the John Williams score lacks on the tympani boom in Dolby digital English track.

However listen to the other language tracks only there Dolby 4:2:4 can’t recall which but one of them has sufficient low end. The laserdisc doesn’t lack anything besides it being a Dolby 4:2:4.

There was rumours circulating that Dolby AC-3 THX laserdiscs where available but I saw no such realise around late 1990’s.

JBL 4645
06-15-2009, 12:33 PM
Well I’ve got a friend that wouldn’t mind knocking a hole in the wall! He’s got an idea that might work I’m going to size the image up with a round plastic piping at 4”?

I’ll post the pictures before 9pm UK time to see if this works?:confused::dont-know

JBL 4645
06-15-2009, 12:56 PM
It kinder works but its miles off and its back to my idea with box made to fit only its dogs dinner a fair few hours work.

The image is cropping off when tilted downwards and its got to be slightly titled due to the height of the projector so a fair 8”w by 6”h hole to make it work.

I tested the picture frame at 4” depth and tilted the projector downwards with ample space and that is what is needed for tiny port window.

The work may commence around Monday next week.

JBL 4645
06-15-2009, 02:21 PM
Just spoken to my friend and I can not believe how he is trying to persuade me to use 6” plastic pipe! I mean how ludicrous is that? I don’t know of any cinema in the world that does that or the ones I’ve worked in!

If and when I decide to place DIY anamorphic lens in (which isn’t going to be this year). But round hole is just mad! Just because he thinks the lens is round doesn’t mean the hole has to be round! Square!!

Sod it I might as well attempt this myself only thing is I might have to place some lintel in the hole or make the small narrow depth box tough as nails.

All I need is some chisels to chop away at small section of the wall then size the box up for the hole.

JBL 4645
06-15-2009, 02:36 PM
Just measured from where the door frame stops at to where the wall starts from both sides and its just under 5” in depth.

I haven’t got rule with millimetres but a shy under 5” not even 12mm.

JBL 4645
06-18-2009, 01:10 PM
I’ve been measuring up the screen again tonight with “2010” (the year we make contact) I’ve Increased the scope size width from 71 inches to 74 height 31 to 33 inches with only 3 inches away from the control 5 five-screen.

Basically just moved the screen back 7 inches. As for the hole when placed back around 5 inches behind the wall should gain an extra few more inches? Possible 79 80 inches width or 6 feet 7”/8” so for now 6 feet 2 inches would have to do until the hole is made.

Diagonal size 92 inches 7 feet 8 inches on max throw with 4.3.

MikeBrewster77
06-18-2009, 01:15 PM
Pay no attention to that man behind the curtain! :p

http://trustedadvisor.com/public/image/Wizard%20of%20Oz.jpg

JBL 4645
06-18-2009, 01:33 PM
Pay no attention to that man behind the curtain! :p

http://trustedadvisor.com/public/image/Wizard%20of%20Oz.jpg

:D Very funny, I was attaching the screen to the ceiling. I actually have The Wizard of Oz on DVD.

MikeBrewster77
06-18-2009, 01:37 PM
:D Very funny, I was attaching the screen to the ceiling. I actually have The Wizard of Oz on DVD.

Great flick... though years ago I once tried to watch it while in a somewhat "altered mental state" and it honestly freaked me the f%ck out. :help:

JBL 4645
06-19-2009, 04:09 AM
Great flick... though years ago I once tried to watch it while in a somewhat "altered mental state" and it honestly freaked me the f%ck out. :help:

I’ll get you! You little pretty and your dog too!:p

JBL 4645
06-19-2009, 05:09 AM
Now if I can be remained undisturbed from the sodden telephone as I was a few days ago! :biting:

The Matrix is cool thou I have the region 2 DVD with a few minor head-butting cuts as head-butting was banned in the UK around mid 1990’s to around 2000? The BBFC is more f5)_ked up than I thought they where!

Excellent audio commentary which doesn’t exist on the region 1 or 2 DVD until now I think its on the blu-ray! Wow so I had to wait all these years 10 years until some Muppet got his head out of ass to do it right!

I’ll think I’ll wait for buying Blu-ray since the studios have been taking the piss with consumers!

Brainstorm too bad it can’t be presented the way it looked in the cinema and it is possible to format the film with narrow like W/S 1.85:1 centred in the middle of the screen and for the all the POV shots scope 2.35:1 where the image should expand outwards would work a treat on DVD.

All you need is two dual versions of the film one for those idiots who like vertical expansion of the fame that looks really naff because it just flattens the films impact!

The other version would be the way it seen and I haven’t seen this in the cinema I’ve only read about it in Cinefex magazine years ago.

Enemy Mine is somewhat different in many ways over the region 2 DVD its PAL laserdisc its got difference in the opening when the spaceships have an out of space battle (dogfight). There’s a music score that has nice pulsating beat that isn’t accompanied on the region 2 DVD Dolby 4.0 discrete.

Men In Black well its kinder hardly played anymore great Dolby stereo 4.2.4 mix too bad I wasn’t running Dolby AC-3.

Stargate I like this version theatrical over the extended cut region 2 DVD. Why can’t they just add both versions rather than wasting money and pissing me mighty off!

“There can only be one” Highlander why does some Muppet want to remake this!? This version p&s is awful looking and the Dolby mix seems a bit botched up on this transfer, kinder reminds of third generation VHS copy.

West Side Story wow I like the interdiction with Robert Wise briefly talking about the transfer from 70mm to laserdisc it’s the kinder thing that turns me on.

The mix is different to the later version region 2 DVD seems like someone has been messing with the mix for the wicked dialogue panning.

Con Air is very rare play here, thou I like the part when the guy gets tossed out the airplane and crashes into the window shield of car waiting at traffic lights, damn that’s that loud and funny at the same time.

Demolition Man you’re even better live than laserdisc not a bad transfer with picture and Dolby 4.2.4. The region 2 DVD would get more plays as its in six-track like the theatrical Dolby SR-D version.

The Ghost in the Darkness sounds wicked on PCM over region 2 DVD analogue track thou the Dolby digital track six-track mix shines with bit more loudness and kick.

Saw this in JBL equipped cinema ABC screen 1 Bournemouth which is now wet fish because they don’t have the bottle to turn the fader up to mark “7” or allow the proper kick from the screen stage to subs.

The Rockeeter thunders nicely on this CAV laserdisc with freeze step be step frame analyzing. The region 2 DVD being six-track Dolby or Dolby 5.0 hmm weird what no Baby Boom track now either someone is playing silly buggers and taking consumers as Muppets needs to sort this out!

Unforgiven wow wicked film gritty and cool musical score end credits.

The Professional sounds really neat on this laserdisc with a few cool off-screen dialogue panning it’s the guy he has gun pointing at me.

Twister is rip roaring wicked THX laserdisc. This was heavily played around the same time when it arrived on laserdisc while still playing in UK cinemas around 1996. Wonderful CAV transfer and PCM Dolby 4.2.4 thou I’m sure the Dolby AC-3 would be near or on the same par with the region 2 DVD. I have three versions of this now! Two editions on region 2 DVD and the THX laserdisc of course. -Cow! -Another cow! -Actually I think that’s the same one. :D

Earthquake not quite the same but for scope 2.35:1 its close. It’s the earthquake rumbling deep effects that was missing a tiny bit during the Big One! The region 2 DVD just goes nuts at chapter 8 and if you can stand to bare 8 minutes of this via the original theatrical presentation well done because it was frigging LOUD! And I saw it three times!

Picture transfer isn’t too bad for laserdisc and nice CAV side 3 is cool with theatrical trailer.

What it really needs is real large cinema PA stage LCR to play this with because most of the rumbles impacts would be playing in moderate levels while the LFE.1 adds a deeper lower frequency rolling rumbling effect that goes mute during the elevator/lift sequence then cuts back in after the strawberry jam files out and plasters the screen It would have looked good if a subtitle came up on the screen PUT YOUR 3-D GLASSES ON NOW!:D