JBL 2235H, 2370 horn lens, LX80 xover, but need HF driver? [Archive]

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Rapidroy

11-08-2012, 04:00 PM

The cabinets made to JBL spec sheet size (25.3x20.7x17.9 w/ 4"x 11" port) from a friend. I have a pair of 2235 15" LF and 2370 horn lens and LX80 crossovers. I really can't afford JBL driver (LE85, 2420) how about a Selenium D220Ti-8? or something in that price range. I don't know what LX80 crossover came out of but think its in the 800 range. here is a pic of the cabs and horn lens I'm cleaning up the fronts alittle getting them ready to paint.

4343

11-09-2012, 10:36 AM

Just be sure you get the bolt-on version if your horn needs 3-bolts. D220Ti-OMF IIRC. (There's a 'bay ad for cabs with what look like your horn, that includes threaded drivers right now, so there may be some confusion about that.)

You could also look for Dukane 5A540 drivers, which came with either original JBL D16R2420 diaphragms or really good knockoffs...
I have a pair of those that have 2425 diaphragms in them, they sound about the same as my 2425's. Which could also fit and sound nice, 2425 or 2426...

I'll let others comment on the crossover, I believe the 2370 is considered a flat-front bi-radial? If so, it should have some sort of CD boost/pre-compensation in the crossover. Not sure if LX80 has that or not.

DogBox

11-09-2012, 03:42 PM

I don't know what LX80 crossover came out of, -but think its in the 800 range....

Hi Rapidroy,

Yep, the LX 80 is in a series [you can google search 'JBL LX80' and look for the PDF file on it. It is a four speaker 3-way [two 165mm
woofers tied together]
Or, try here and scroll down to get what you need. [I find this list UNREAL for info!!!]

http://www.schematicsforfree.com/archive/dir/Audio/Products/Speakers

The crossover points are:600Hz and 2.5kHz , so in your application- i'm not sure how you could utilise it..

DogBox

DogBox

11-09-2012, 04:02 PM

While digging a little deeper, I found the Cabaret Series 4691B uses a E140 and a 2426 with 2370 horn.
..A bit closer to what you're building up. Check out that same 'schematics-for -free' site and the spec.'s
give a crossover...

DogBox

Rapidroy

11-09-2012, 04:39 PM

I think your looking at LX80 speaker system I have the LX80 crossover network its very large and in 2 peice's with a cord to connecting them together. there is some confusion about them. here is a link that I found.
http://www.audioheritage.org/vbulletin/showthread.php?8570-LX80-LX80A
its a 2way xover with a lpad. in the link it lists drivers and such but not what speaker systems JBL used them in.
Maybe I should sell the horn and the xover and Ewave them.

DogBox

11-10-2012, 05:05 AM

Hi Rapidroy, There is something I just don't get here.. You look up LX80 Technical Manual and it gives you a speaker AND a "wiring diagram"
that has: Network LX80 (2709400) and shows the "Schematic LX80" BUT NOTHING LIKE the two way you gave me the link to....

I know that sometimes the 'network' can have its own "different" number, but these are the same! :eek:

...I take my leave!

DogBox

DogBox

11-10-2012, 05:35 AM

there is some confusion about them. "Becoming clearer..." here is a link that I found.
http://www.audioheritage.org/vbulletin/showthread.php?8570-LX80-LX80A "Should have looked closer at Giskard's schematic 'LE85'!'
... what speaker systems JBL used them in. "I recognized the:3131 as-in 'jbl 4331' a two-way"
Maybe I should sell the horn and the xover and Ewave them. NO! DON'T

The LE85 is a 1" Alnico Compression driver. See what you can do to get one as it will bolt straight on.
With a 2235, what were you intending to use it for: Hi-Fi or Instrument?

DogBox

Rapidroy

11-10-2012, 09:01 AM

The LE85 is a 1" Alnico Compression driver. See what you can do to get one as it will bolt straight on.
With a 2235, what were you intending to use it for: Hi-Fi or Instrument?

DogBox

I'm using them for Hi-Fi I just can't swing a LE85 or 2420 at this time so I'm looking for a less expensive horn that will work well with setup.

1audiohack

11-10-2012, 02:54 PM

the Bay is usually loaded with 2425's for pretty small money and bolt right up to the horns you already own. Are these out of the question for some reason?

DogBox

11-10-2012, 03:57 PM

Hi Rapidroy,
If the LE85/2420,etc. is too costly at the moment, the hard thing is to "successfully" join the 2235 to 'something' AND make it smooth....
The 2235 specs say that 1000Hz is the highest crossover point it will handle [which sounds high to me..] So, you are wanting something to go
low enough to cross there and be able to go up pretty high [18kHz at least] to get reasonable coverage to sound good.
The Selenium D220 Ti needs to be crossed at 2kHz, so not an option. Maybe, just , you might be able to use a Eminence PSD:2002 from PE
with the 3-bolt option and get some advice on how to "lift" the crossover frequency from 800Hz up to 1250Khz or, thereabouts.
Anyone else got an option, besides: wait and save up?

DogBox

Rapidroy

11-10-2012, 05:03 PM

i found a pyle that is 800-20000hz ($32.99 MCM) but i would have to use a adapter (screw on to 3 bolt)
http://www.pyleaudio.com/sku/PDS344/135
or this one goes lower 500-18000 (23.99) and is a bolt on
http://www.pyleaudio.com/sku/PDB512/202

I'll start looking for some 2425's also

DogBox

11-14-2012, 02:47 PM

Hi Rapidroy,
Both those Pyle drivers "will fit" but shame that Pyle don't give a 'Frequency Response' which shows how well the
driver actually covers that frequency range... They don't even give a + or - dB range in there Spec. sheet..
Doesn't give you much faith in what you're spending your 'hard earned' on; or at least "any idea" of what you will get...
Sorry to be disheartening, but "been there, done that... got to wear the frown of disappointment. :( "

DogBox

Rapidroy

12-13-2012, 11:10 AM

so I got the Pyle 512 drivers for now till I sell some stuff to get LE85 or 2420's but I do have a question about hooking up the 2235h it is a reverse polarity driver (+ = - when a battery is testing it) and the xover is also reversed (when tested with a volt meter + = -) the driver is marked red and black and so is the xover, do I put the red (on the driver) to the black on the xover and black to red? I did it both ways and yes it sounds better (to me) black to red or (normal polarity). The HF is normal red = + on my meter.

ivica

12-17-2012, 03:12 AM