Which woofer does 30-1000 Hz / JBL 2235A Equivalent

[audiothings]

I'm trying to find out if there are any woofers out there that can go from 30 Hz to 1000 Hz... I saw a design which used the JBL 2235H and the TAD 2001, crossed over at 1 Khz... Wondering if something similar can be created, at a more friendly price point.

 

[jerome69]

Beyma 15MI100 + B&C DE250
Sorry in French

 

[Charles Darwin]

That Beyma has an Fs of 48Hz. Does it really go down to 30Hz without coercion?

 

[jerome69]

I don't know but in Beyma documentation : http://profesional.beyma.com/pdf/15MI100E.pdf

Frequency range 30 - 4000 Hz

 

[John_E_Janowitz]

Do you have parameters on the 2235A? All I can find are the 2235H.

 

[pos]

some might refer to a 2235A that would be a 2231A (alnico) core with a 2235H recone kit, but the 2235A does not exists as such
The 2231A is the alnico version (and ancestor, but very similar) of the 2235H

there also was a 2231H for some time...

 

[John_E_Janowitz]

I'm not sure what the application is for, but either the TD15H or TD15X would likely be good option. The TD15X models quite similarly in a vented enclosure. You'd have have much more power handling, much more Xmax, and a fraction of the inductance of the JBL though. All good things.

There are some measurements up on Brandon Thill's driver guide.

AE Speakers TD15X 4ohm - drivervault

Full parameters can be seen here.

Acoustic Elegance • View topic - TD15M, X, H, and S parameters

John

 

[Charles Darwin]

I don't know but in Beyma documentation : http://profesional.beyma.com/pdf/15MI100E.pdf

Frequency range 30 - 4000 Hz

I know, that's where I looked but the are no corners given so I assume those are -10dB or -12dB.

 

[jerome69]

Yes I think so !

 

[Helmuth]

you need a light papercone woofer to go that deep and have good mid and 93dB.

Here a nice price 15 inh that comes close to spl and fs with good mid.4ohm
Dayton DCS380-4 15" Classic Subwoofer 4 Ohm | Parts-Express.com

Break up at 1.8k will be hard to get that right, for spl and low quite similar to the jbl

http://www.parts-express.com/pdf/295-325s.pdf

here one with flat resonse up to 1100hz
http://www.parts-express.com/pdf/295-034s.pdf

no breakup les low end
http://www.parts-express.com/pdf/264-393s.pdf

 

[Charles Darwin]

At a potentially less friendly price point you could get a s/h 15" Tannoy DualConcentric like a K3808, K3838 or a 3833.
On the other hand they come with tweeter and xover.

 

[Helmuth]

Here a fine candidate PPL.

MONACOR INTERNATIONALroduct detail page

 

[John_E_Janowitz]

Depending on the application, the TD15H is likely the closest match to what you'd have with the 2235H. We've actually had a few people do this upgrade in the past and they have been extremely happy with the results. If you have a specific application I'd model it for you. I ran a comparison in a 4cf vented enclosure tuned to 28hz. You can see that it models nearly identically in this application. Red is the 2235H and Green is the TD15H.

It offers a big upgrade with 14mm Xmax vs 8.3mm and 20+mm suspension travel vs 11mm on the 2235H. It also has 500W power handling vs 150. Inductance is .3mH instead of 1.2mH. The full copper shorting ring drastically reduces Le(i) (flux modulation) and Le(x) is perfectly linear at all excursions.

John

 

[audiothings]

Thanks John E Janowitz and others. That AE Speaker does look very good. Do you think it will pair well with a Selenium D3300Ti-DPD compression driver? It has a recommended crossover frequency of 800 Hz and goes all the way up to 25 KHz. And obviously, a much friendlier price than the TAD 2001.

 

[John_E_Janowitz]

The Selenium could work well. For the money they are quite good. However, keep in mind that a 2" throat will limit the high frequency response. The compression driver itself can play to 25KHz but the 2" throat by nature will have some serious issues around 15KHz. The only reason I would ever go with a 2" driver is in cases where you really need the extra output as in live sound reproduction. A 1.4" like the BMS will give you a little more extension before those throat related problems begin. In reality though a 1" throat will most likely be your best option. I've heard very good things about the new Celestion 1" compression drivers. The 1" BMS and of course the B&C DE250 are also good options. The main point is to find a waveguide that will go down low enough to get to that 800-1KHz region.

John

 

[PaleRider]

This one is more in the same family as the 2235:

Beyma Speakers - Beyma 15B100R speaker - Beyma 15B100R 300 watt 15" woofer for all hi-fi and studio monitor bass speakers. Beyma 15B100R and other Beyma 15" speakers here.

 

[pos]

I have used it. It is nothing like a 2235 in my opinion. The Xmax is also only a third of that of a 2235 (3mm!)

 

[Russellc]

I'm trying to find out if there are any woofers out there that can go from 30 Hz to 1000 Hz... I saw a design which used the JBL 2235H and the TAD 2001, crossed over at 1 Khz... Wondering if something similar can be created, at a more friendly price point.

Two options other than the 2235H repair kit:

1.)Get a dead and needing reconed 2225H, have it reconed with MWA speaker parts kit for 2235H. Much cheaper and dam well as good as the JBL kit. You'll need the mass rings to make 2235H, without you'd have 2234H which you would like just as well. These kits are only available from speaker reconers, so you would likely need one of those guys to obtain it for you.

2.) Get dead 2226H and have Gordon (can be found over on AK foum) and have him build you his "super woofer".......TAD Smad, this monster not only has as much or more xmax, but handles 600 watts, and cheaper to boot

Russellc.

 

[Russellc]

Beyma 15MI100 + B&C DE250
Sorry in French

Agreed on the B&C DE 250!

Russellc

 

[audiothings]

The B&C DE 250 has a recommended crossover frequency of 1.6 KHz... Even if, say, the suggested AE woofer can go that high, won't it be severely beaming?