Love JBL! New baby´s 4333, 4344

[laszlo]

854528545385454

[Odd]

Fantastic fine work you've done here.

[Mr. Widget]

Looking awesome, keep ‘em coming.


Widget

[laszlo]

Thank You!
The biggest ones have to be built in place because of the weight. Hopefully they will be painted and assembled before the holidays. JBL grey this time.
It's beginning to look a lot like a great Christmas !!!

85459Thank you!!!
85458

[laszlo]

8552585526

[BMWCCA]

:applaud:
I wish I had even half your woodworking talent! Beautiful to see what you've accomplished.

[Ian Mackenzie]

Impressive

[Challenger604]

Very nice Laszlo!

I will start two pairs of 4355 in spring!!

I hope you will receive the fabric very soon!

Cheers!

[Mr. Widget]

It's beginning to look a lot like a great Christmas !!!
Is this all for you or do you have several friends? :D


Widget

[laszlo]

My friend who owns the workshop would like to buy the 4333´s so i started collecting parts for a new set. (To myself yes)
If anyone has parts, I'm interested.



Is this all for you or do you have several friends? :D


Widget

[45shooter]

beautiful craftsmanship.

[laszlo]

Thank you!!
The members of this forum is the main reason that it’s possible to build those boxes!

Christophe, your lucky man. Thank you for your help so far!
I wish the parts was easier to get her in Europe.
We could start a production line for those great speakers!


Very nice Laszlo!

I will start two pairs of 4355 in spring!!

I hope you will receive the fabric very soon!

Cheers!

[laszlo]

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[laszlo]

85533

[Challenger604]

Thank you!!
The members of this forum is the main reason that it’s possible to build those boxes!

Christophe, your lucky man. Thank you for your help so far!
I wish the parts was easier to get her in Europe.
We could start a production line for those great speakers!


Very welcome Laszlo! My pleasure! I’m happy to help those who are appreciate it!

And thank you also!!
C

[Challenger604]

85533

Beautiful!

[laszlo]

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[laszlo]

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[badman]

Absolutely gorgeous. Nice joining on the veneer.

[laszlo]

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85604

[laszlo]

Thank You!


Absolutely gorgeous. Nice joining on the veneer.

[laszlo]

Dear members

Advice needed for UHF driver.
Can I use 2402?

85605

I was planning using 077’s for the 4344.

85606

thank you.

[Mr. Widget]

Advice needed for UHF driver.
Can I use 2402?Since you will have L-pads to balance the load and adjust the output level, you can certainly interchange these drivers in all of these 43XX systems. That said, the 2405/077 will, in my opinion, sound better.


Widget

[laszlo]

Thanks a lot!
i try to get a set 2405.



Since you will have L-pads to balance the load and adjust the output level, you can certainly interchange these drivers in all of these 43XX systems. That said, the 2405/077 will, in my opinion, sound better.


Widget

[Challenger604]

Bravo!

[laszlo]

85634

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[Challenger604]

85634

85635

beautiful!

[laszlo]

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[Woody Banks]

Beautiful work, especially the veneer. :applaud:

[Mr. Widget]

Beautiful work, especially the veneer. :applaud:Yes, and quite a lot of work too!


Widget

[jmpsmash]

That's really professional work! Looks great! What's the thickness of the panels?

[laszlo]

Thank You!
i used 28mm MDF for these three models.

[laszlo]

85674

[laszlo]

Hi
Could someone help me find the right mounting clamps for ME150?
The ones I bought from eBay (MA15) and use for 2235 isn’t high enough.

Thanks laszlo.

[ARMED]

I wish someone would make these for me in California

[laszlo]

I wish I could help you with those


I wish someone would make these for me in California

[laszlo]

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[laszlo]

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[laszlo]

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[laszlo]

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[Challenger604]

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Beautiful work Laszlo!!
C

[macaroonie]

^^^^ I'll second that. :applaud:

[laszlo]

85942

[Mr. Widget]

Congratulations... looking very nice!
Makes me want a pair. :banghead:


Widget

[Challenger604]

85942

I will start mine with the 4355’s in April... I can’t wait!

I’m so jealous!

[laszlo]

Dear members!

Can someone help me how to "polish" the frame for scratches?

85982

[toddalin]

85942

Very Nice!

If you want to keep those cool looking 075s, and even be able to see them, while vastly improving their performance, I may still have a set of clear acrylic slant plates. You need 4" of space to either side of the tweeter's centerline.


https://youtu.be/zicT8bw1ZmM


https://youtu.be/_V29HA9JFU4

[laszlo]

Thanks for the suggestion. I have never seen those before.
Can you tell me the price for a pair? You can send a pm if you like.
Thanks


Very Nice!

If you want to keep those cool looking 075s, and even be able to see them, while vastly improving their performance, I may still have a set of clear acrylic slant plates. You need 4" of space to either side of the tweeter's centerline.


https://youtu.be/zicT8bw1ZmM


https://youtu.be/_V29HA9JFU4

[1audiohack]

I re-brush these when I re-cone them. I forget what grit and will
come back with it.

From the picture it looks very light. Maybe a small stainless steel “scratch” brush could blend it. ?

Barry.

[toddalin]

Thanks for the suggestion. I have never seen those before.
Can you tell me the price for a pair? You can send a pm if you like.
Thanks

$120/pr + $8 shipping in continental US. No other place in the world to find these as they are totally unique.

http://www.audioheritage.org/photopost/data//500/medium/Resized_Shipping_Box.jpghttp://www.audioheritage.org/photopost/data//500/medium/Resized_Slant_Plate_Assembly.jpghttp://www.audioheritage.org/photopost/data//500/medium/Resized1.jpg

[macaroonie]

Tasty !!!

[laszlo]

What is the shipping costs to danmark?


$120/pr + $8 shipping in continental US. No other place in the world to find these as they are totally unique.

http://www.audioheritage.org/photopost/data//500/medium/Resized_Shipping_Box.jpghttp://www.audioheritage.org/photopost/data//500/medium/Resized_Slant_Plate_Assembly.jpghttp://www.audioheritage.org/photopost/data//500/medium/Resized1.jpg

[toddalin]

What is the shipping costs to danmark?

$40 ($39.95)

[Ian Mackenzie]

Hi Todd,

Cool,

They look the part.

Why not place them in the market place ? You might get demand from elsewhere.

Does the kit include information on an optimised crossover network?

I have heard the native 075’s in 43XX monitors and it’s wasn’t comparable to the 2405. The thing is some global regions prefer the 075 due to different listening preferences.

[toddalin]

Hi Todd,

Cool,

They look the part.

Why not place them in the market place ? You might get demand from elsewhere.

Does the kit include information on an optimised crossover network?

I have heard the native 075’s in 43XX monitors and it’s wasn’t comparable to the 2405. The thing is some global regions prefer the 075 due to different listening preferences.


Most people here know I make/have them and there is really not enough $$$ in them to make a go of marketing, though I do ocasionally post them on the bay as well as my Heil stands. I did send the links, pics, and write-up to Nelson Pass and he was very impressed and wished me well in them.

At this point, I think I have the makings for complete set with slant plates and bases for a couple more sets. I may need to make a few of the diagnols to complete the other sets though.

I think the sound of the 075 with the slant plate assembly may be better than the 077s, though they won't go quite as high, and if I had developed these before getting rid of my 075 (for 2405s), I probably would have kept the 075s.

[Ian Mackenzie]

Send a pair to Kenji @ KenRick Sound

I or someone could do some off axis measurements with REW and you have yourself a nice aftermarket accessory for $150 a pair in Cute Shoe box

[toddalin]

Send a pair to Kenji @ KenRick Sound

I or someone could do some off axis measurements with REW and you have yourself a nice aftermarket accessory for $150 a pair in Cute Shoe box

Kendrick Sound would get a pair, test them, love them, and knock them off.

[Ian Mackenzie]

You’ve published the idea already!

I personally think it would be an improvement on any blue baffle system with retro fitted 075’s based my experience. 😱.

Did you demo them to me last Jan? My memory is vague. I think heard your big monitors and the Heils.

[toddalin]

You’ve published the idea already!

I personally think it would be an improvement on any blue baffle system with retro fitted 075’s based my experience. ��.

Did you demo them to me last Jan? My memory is vague. I think heard your big monitors and the Heils.

Sure they are out there for all to see. But to get the specs right is another thing more easily accomplished through direct measurement of an existing piece.

I don't think I demoed these. I only have the one 075 at this point. At least it is still original.

BTW, the slant plates work even better (more dramatic changes) when using an N2400 crossover.

The big monitors with the Heils (Ethyl Mermans) have undergone several crossover changes since you heard them, and they now sing more sweetly than ever.

And, if you recall the Altec Super Big Reds were powered by a Yamaha DSP-A1 for the preamp/horns and a Soundcraftsman 300x4 for the four woofers..., and the Soundcraftman had a ground loop hum. This has now all been replaced with vintage Marantz equipment with an 1180DC for the preamp/horns and a pair of 170DCs for the four woofers (and a Marantz 2130 tuner), and no ground loops. Very sweet!

You know that you are always welcome to stay here if you visit the area.



https://youtu.be/pbbS0QYK2_o

[laszlo]

Thanks Barry
It will be great.
Do the surface need some kind of coating after brush ?



I re-brush these when I re-cone them. I forget what grit and will
come back with it.

From the picture it looks very light. Maybe a small stainless steel “scratch” brush could blend it. ?

Barry.

[laszlo]

I just need to share this.
1. Test after finishing the wires, and I don’t know what went wrong.
I’m absolutely amazed by the sound!!!
Thanks for help from members. It wouldn’t be possible without you!

86079

[speakermaker]

Hallo Laszlo
Can You give some Infos about the crossovers.
Thanks

[laszlo]

Hi.
I’m very sorry but i’ve got them made so the only thing I did was, connect the drivers.



Hallo Laszlo
Can You give some Infos about the crossovers.
Thanks

[highcut28]

Really fabulous work Laszlo.
May i enquire what woofer u have in the 4333?
I am trying to put together a pair of L300/4333.
I have the 2235H s. Its not the original woofer for these models but is recommended as best replacement.
I am wondering what are the ideal cabinet and port dimensions to get the best out of them.
btw I am using the Nelson Pass version of the XO.

[RMC]

Hello highcut,

I have some suggestions for you with the 2235. Don't have time right now but will be back later tonight. Gotta go for now...

Richard

[highcut28]

Hello highcut,

I have some suggestions for you with the 2235. Don't have time right now but will be back later tonight. Gotta go for now...

Richard

Looking forward to that Richard.

Currently the 2235H s sit in the cabs i got made a few yrs ago sort of following the dimensions and port of the 4333.
They are reasonably well made although probably not that well damped.
Here s my thread about how this came about
http://www.audioheritage.org/vbulletin/showthread.php?32595-New-cabinet-for-L200

but i ve moved on from there. Have H92 horns for the LE85, 077 s , 2235H s
The drive is kinda unique, its semi active
700 Hz EXO amp to 2235Hs , amp, passive XO( top part of Nelson Pass's) feeding just the LE85s and 077s
I ve just got things wired up and sounds pretty good
I d like to explore new cabs again.

[laszlo]

Hello and thanks.
For the pair in the pictures I used 2235H and the driver works very well with the Nelson Pass filter!
In the next two pairs I wanna try out the D130F and also a pair of LE15H. Same filter and same cabinet volume.
Cheers


Really fabulous work Laszlo.
May i enquire what woofer u have in the 4333?
I am trying to put together a pair of L300/4333.
I have the 2235H s. Its not the original woofer for these models but is recommended as best replacement.
I am wondering what are the ideal cabinet and port dimensions to get the best out of them.
btw I am using the Nelson Pass version of the XO.

[RMC]

Hello highcut,

Sorry to make you wait but i'm busy. From your original post i'm replying here to two issues mentioned: cabinet and port dimensions.

Note the info given below is from various JBL documents i have, not from me nor my software modelings.

The typical enclosure JBL has suggested for the 2235H is 5 cu.ft. net with tuning frequency at 30 hz. This has been consistent in the JBL tables on-hand (i know in the B380 cabinet it was used in a 4.5 cu.ft. box with Fb 26hz or so, but that's a subwoofer, also intended to be used with the BX 63).

Based on Y2K or so JBL vent standards, the minimum acceptable vent size for a 15" driver is one-third woofer diameter, so a 5" dia. tube in the present case. To resonate the box at 30hz here's a few options:

1 X 5" = 19.6 sq. in., Lv 8"
2 X 4" = 25.1 sq. in., Lv 11" ( note these two vents are equivalent to a 5.7" vent)
1 X 6" = 28.3 sq. in., Lv 12.4"

Note also i've indicated each vent area so that you can see the vent area gain is larger from first to second one than from second to third one. Plus the second option at 5.7" is quite close to the third option at 6". For practical vent placement reasons i suggest using the second option because its easier to deal with twin 4" than a 6" one on a baffle panel for example where space might be limited.

Btw one 4 1/8" port as used on the B380 is not a great idea for a LF driver this size and capability. I'm 95% confident that if i modeled that vent in software at the power levels mentioned in JBL's 1983 article (600 W program material) it would show important vent issues in relation to its ability to pass successfully the amount of air required...

With regards to cabinet dimensions, as an example, JBL gives the following INSIDE dimensions for use of 2235H: 25.3" H X 20.7" W X 17.9" D. However these numbers add up to 5.43 cu.ft. instead of 5 cu.ft. As i recall the 4333 you refer to has a 5.5 cu.ft. cabinet so a little larger than 5 cu.ft. for 2235.

You will need to tweak the cab dimensions somewhat. As a starting point i use dimensions giving the target NET volume, then add to this number the volume of items going in the box: woofer, other drivers, bracing, vent, etc. in order to get a gross volume from which one calculates the panel sizes required. Example a 15" woofer takes 0.2 cu.ft. of space in the box (volume displacement). Hopefully the above will help you. Regards,

Richard

[berga12]

Wonderful!
I Like a lot the 4355 with Grey finish!

Which one you like most? 4333,4344,4355 ?

[highcut28]

Thank you very much Laszlo and Richard

Laszlo - its reassuring that you are getting a good result with the 2235H s in those lovely cabs and using Mr Pass's XO at that.

Richard - that was worth waiting for . Plenty there to chew on. I dont quite have Laszlo s skill but I can get help.
For the moment I am enjoying fine tuning my '4333s'
The semi active drive is fiddly but fun. These speakers are leagues ahead of the L200 s which imho were probably JBL's worst effort. Only the LE85 s survive from dad s old speakers !
It will be a while before I embark on new cabs. Will post in my original thread.

Cheers
Shahrin

[laszlo]

Thanks!
The 4344 isn’t in the game yet. I have som issues with the filter since I use mkII parts. (Filter is for 4344).
So I can only speak for the 4355 and 4333.
4355 is still my favourite (monster) but I need to say, the 4333 horns are unique and sounds so great!


Wonderful!
I Like a lot the 4355 with Grey finish!

Which one you like most? 4333,4344,4355 ?