testing the water for new speaker concept.

[lbstyling]

Hi all,
Im looking to 'finally!' build my next speakers possibly loosely baised on Jack Bouskas amazing speaker http://jgbouska.tripod.com/audio/ . The speaker could follow Jacks excellent design in concept but I was looking to see if it could be done baised on easily accessable jbl drivers available on ebay instead of the awsome but very pricey units used in Jacks design.

I have posted more on the subject here
http://www.avsforum.com/avs-vb/showthread.php?t=1346577

as explained in the post, I have a excellent bass driver and tweeter to hand that may not be up to task ultimately, but the modular design of the concept lends itself to swapping out components as time goes on anyway.

At this point I have 2 questions for you chaps-

1) could anyone recommend cheaper alternatives available second hand for Jacks drivers? 1st order crossover ability would be lovely but I appreciate that this is quite somthing to ask for.

2) Any recomendations for a low distortion mid driver to cross between the volt bass and tweeter?

Thanks all!;)

[BMWCCA]

I admire your ambition!

Personally all I can say is ugly is in the eye of the beholder!

[lbstyling]

I admire your ambition!

Thanks!
Well, the driving force behind this is basically 33% anger at being taken by the bs marketing driven world that is much of the audiophile world these days just too many times. 33% need to finally scratch that itch that is awsome sound in my own home and 33% to acomplish somthing that I can be truly proud of.
Ive made it my bussiness to buy and sell many speakers over the last 5 or so years to try and get to the bottom of what makes good sound to my ears, and to be honest it looks like its largely just plain old simple low distortion across the board. This critically includes dynamic conditions ESPECIALLY in the mid range. Of corse theres lots more to it than that as you all know, but the magic starts there regardless.


Personally all I can say is ugly is in the eye of the beholder!
If your refering to my wifes happyness to accept a 6ft+ speaker pair in our living room then yea- I was pinching myself when she said it! If you mean in context to the form of many of the jbl home speakers (such as the L100 century i owned) then yes they all have there charms imo and theres no accounting for taste!
The key to Jacks design being WAF acceptable is the modern styling ticking the box with the modern styling of my living room I think.

[BMWCCA]

If your refering to my wifes happyness to accept a 6ft+ speaker pair in our living room then yea- I was pinching myself when she said it!.

You're a lucky man. Happiness was never a word I'd use to describe my wife's thoughts on the forty-years she's put up with my huge boxes in her living room. Sure, she's happy with them when listening to music, though she would rather have a living room not quite so dominated. But she's gotten used to them and allows them—and me—to stay around and even get rowdy when we want to. :D

[yggdrasil]

Here's a few thoughts about drivers for a cheaper/scaled-down version of these speakers:
- 2435 replacing the top 2 drivers
- mid: whatever 2123/2122/2012/2202/2204/2206 surface first
- low: 2226/2227/2225 or e.g. 2235 and no sub.

Good luck

[lbstyling]

Thanks people.

Been doing lots of research into choices and I have gone in a big loop from the 2435 mid, through various soft dome mid ranges and alike and all the way back to the 2435!

I initially rejected it on cost basis- but it seams nothing I can find has the ability of this driver on paper to do what I want.

Ive found FR graphs of it but not much else- has anyone got any distortion measuments or FR's on different horns??

Its also glaringly obvious that the bass driver I have will be way behind in the max output stakes and probably power compression too, but I see this as a evolutionary project, so for now the idea is the system will be ran 2.1 with my 2242h sub (I love this thing!) to help and at a later point I will re-address the bass options.

[richluvsound]

Thanks people.

Been doing lots of research into choices and I have gone in a big loop from the 2435 mid, through various soft dome mid ranges and alike and all the way back to the 2435!

I initially rejected it on cost basis- but it seams nothing I can find has the ability of this driver on paper to do what I want.

Ive found FR graphs of it but not much else- has anyone got any distortion measuments or FR's on different horns??

Its also glaringly obvious that the bass driver I have will be way behind in the max output stakes and probably power compression too, but I see this as a evolutionary project, so for now the idea is the system will be ran 2.1 with my 2242h sub (I love this thing!) to help and at a later point I will re-address the bass options.

http://www.behringer-electric.de/index.php?option=com_content&view=article&id=100&Itemid=194


You wont get Jack's sound without something like this .... Be drivers ... Kinoshita build the warp - 4x 10" volts and a TAD 4001 in each . You are to need to design a network what ever you build . Good luck with your ambition !

Rich

[cooky1257]

Here's a few thoughts about drivers for a cheaper/scaled-down version of these speakers:
- 2435 replacing the top 2 drivers
- mid: whatever 2123/2122/2012/2202/2204/2206 surface first
- low: 2226/2227/2225 or e.g. 2235 and no sub.

Good luck

+1,
I even have a pair of 2435's and 2235's for sale and am in the uk.
Cooky

[lbstyling]

http://www.behringer-electric.de/index.php?option=com_content&view=article&id=100&Itemid=194


You wont get Jack's sound without something like this .... Be drivers ... Kinoshita build the warp - 4x 10" volts and a TAD 4001 in each . You are to need to design a network what ever you build . Good luck with your ambition !

Rich

The true extent/radian drivers are out of my price range/beyond what Im willing to pay new. Lovely as they look that is.

[richluvsound]

The true extent/radian drivers are out of my price range/beyond what Im willing to pay new. Lovely as they look that is.

Then Cooky is your Man !.......:applaud:

[lbstyling]

+1,
I even have a pair of 2435's and 2235's for sale and am in the uk.
Cooky

oooh-
Are they the coated ones for sale on another forum by any chance?

[cooky1257]

Cheers Rich,

They are indeed, well were, I'd sort of stopped at selling one pair of 2235A'a but will be re posting them soon.
I moved up to 2452/truextents but to be honest the difference isn't that great such is the quality of the 2435's.
The aquaplas coating costs around 2-3dB in efficiency, the coated 2435's are still 1-3dB more sensitive than the 2452/be.
Cooky

[lbstyling]

Cheers Rich,

They are indeed, well were, I'd sort of stopped at selling one pair of 2235A'a but will be re posting them soon.
I moved up to 2452/truextents but to be honest the difference isn't that great such is the quality of the 2435's.
The aquaplas coating costs around 2-3dB in efficiency, the coated 2435's are still 1-3dB more sensitive than the 2452/be.
Cooky

Sounds good.

Do you have any FR/distortion information on them?

[cooky1257]

Search is you friend on here, there are numerous threads on the 2435HPL/435Be.

[1audiohack]

Have you seen the FR and distortion pages in the transducer section? The last page is as measured without the distortion levels raised which to me is much easier to really compare.

[lbstyling]

Have you seen the FR and distortion pages in the transducer section? The last page is as measured without the distortion levels raised which to me is much easier to really compare.

Yes, found it in the end, thanks for that!

Ok, so a pair of 2452 drivers are on the way to me now.:D
There going onto a conical JMLC 350 hz horn.

Now, I did plan to have the whole bouska style mutiple driver array, but Im unsure now.

At the moment I'm stuck between having a MTM arrangement or Just a symple 2 way.

The JMLC horn is good down to 500hz or so, and the 2452 is good for round that figure, so ive got a fair amount of flexability for a bass driver. Not sure if im happy to go to 15" or limit it to 12"

Im looking for extention down to 60hz or below.
Any suggestions for a particular low distortion model, that can be had second hand for reasonable money 2206? 2020?

[1audiohack]

I have 2020's in the office and bedroom and I love them. They will however not reach down to your 2242 with any authority, even in a 2ft³ sealed box they are rolling off fairly hard at 200Hz.

The other JBL 12" drivers I also have (and have direct experience with) are 2202's 2204's and 2206's. If you asked me to choose from this group for use with a 2242 it would be the 2204, I like the sound of them better than the 2206, I can't really articulate why.

[lbstyling]

I have 2020's in the office and bedroom and I love them. They will however not reach down to your 2242 with any authority, even in a 2ft³ sealed box they are rolling off fairly hard at 200Hz.

The other JBL 12" drivers I also have (and have direct experience with) are 2202's 2204's and 2206's. If you asked me to choose from this group for use with a 2242 it would be the 2204, I like the sound of them better than the 2206, I can't really articulate why.

Thanks audiohack.

Ive been looking for independent distortion measurments on the 2206 (as its easier to find) and havent found any so far. If anyone knows of any, please let me know.:)

[lbstyling]

Update-
I decided to give in to having a 15" driver-
A lovely pair of JBL 2226hpl drivers are now on the way.

:)