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JBLfreak
03-10-2009, 01:32 PM
Hi,

recently, I bought a pair of 2426 drivers for use in a 2-way hifi system.
I am very pleased with them, great dynamics & higs.

But, can anyone tell me the difference between 2425 and 2426? What changed?
Somebody got a good crossover scheme for these?

Then about the 2416 driver. I have a pair of these in UREi 809 monitors.
Is this the same as 2426? (minus the cover, etc)
By the way, great speakers, those little UREI's...

Martin S

SMKSoundPro
03-10-2009, 01:43 PM
2425 = three hole mounting of horns
2426 = screw on horn w/ three hole adapter.

I believe you will find that the 2416 = 2426 without the cast can and back cover.

I believe you will find the diaphragms are all the same, basically.

There are PLENTY of crossovers available for these drivers. They are very popular and used all over the world in real boxes and systems.

I use the 2225 and 2425/2370 combo. Simple.

Do a search for 2425 and you will find volumes of info here.

Scotty.

Don Mascali
03-10-2009, 03:59 PM
2425 tend to be a bit older as the 2426 was a replacement and differ only as said above. The diaphragms are identical.

The 2416 has a different diaphragm and is a more Hi Fi oriented driver :dont-know. It will not handle the power that the others will.

jbl
03-11-2009, 10:43 AM
I use the 2225 and 2425/2370 combo. Simple.

Scotty.
A very good combination.

robertbartsch
03-11-2009, 12:16 PM
Yeh, I'm running a 2225 and 2425 on a few systems in my home - very capable systems!

Allanvh5150
03-11-2009, 12:28 PM
I love the combination as well but there is a lot of bad press about the 2370, for what reasons I am not sure.

Allan.

Don Mascali
03-12-2009, 01:32 AM
I have three 2426/2344combos and two 2426/2346 (Everest horns) in my 7.1 HT/audio set up. I really like them.
The 2370 is considered a nice horn for Pro Sound but many people don't like them for home use. They are too directional for close up listening. :dont-know

Allanvh5150
03-12-2009, 01:34 AM
I normally use headphones for up close listening.:D

Russellc
03-12-2009, 06:26 AM
2425 = three hole mounting of horns
2426 = screw on horn w/ three hole adapter.

I believe you will find that the 2416 = 2426 without the cast can and back cover.

I believe you will find the diaphragms are all the same, basically.

There are PLENTY of crossovers available for these drivers. They are very popular and used all over the world in real boxes and systems.

I use the 2225 and 2425/2370 combo. Simple.

Do a search for 2425 and you will find volumes of info here.

Scotty.
Hmmmmmmmm My 2425H drivers are screw on. Maybe some differed?



russellc

Mr. Widget
03-12-2009, 08:39 AM
I love the combination as well but there is a lot of bad press about the 2370, for what reasons I am not sure.On another thread a couple of people were talking about how compression drivers are inherently harsh sounding... horns like this one exacerbate the problem.

Used properly and using the correct horn a compression driver can maintain all of it's pluses and not sound hard, harsh, glaring, or shouty.

For example, the 1" exit drivers discussed in this thread are often used far below their comfort range. If you use a larger horn and cross it over higher you will reduce or eliminate the unpleasant "horn" qualities that many dislike.

That said, there are plenty of Klipsch fans out there and they don't seem to mind an aggressive sounding speaker. Perhaps the Vintage JBL, Altec, and Klipsch fans merely put up with the unpleasantness since they focus on the dynamics and effortless playback of a high efficiency system. I don't know, but I can tell you I have heard a number of horn systems that you would never know were horn based if you couldn't see them... the Array 1400 is one of them.


Widget

4313B
03-12-2009, 08:47 AM
I don't know, but I can tell you I have heard a number of horn systems that you would never know were horn based if you couldn't see them... the Array 1400 is one of them.

D: "What happened to the 'horn sound'?"

G: "Oh we got rid of that a long time ago."

:rotfl: :applaud:


I use the 2225 and 2425/2370 combo. Simple.They did what they were supposed to do.

jbl
03-12-2009, 10:05 AM
I love the combination as well but there is a lot of bad press about the 2370, for what reasons I am not sure.

Allan.
Don't believe everything you read. Listen to it and decide for yourself.

Allanvh5150
03-12-2009, 10:28 AM
Don't believe everything you read. Listen to it and decide for yourself.

I don't believe everything that I read. The 2425/2370's that I have were the first JBL's that I ever purchased, 1983 I think. :)

Allan.

Mike Caldwell
03-12-2009, 11:07 AM
The 2425 is drilled and tapped for both three bolt horns and two bolt horns. That can be handy depending on what horns your using.

I have a mix of 2425 and 2426 drivers in my systems, no problems using them together.

subwoof
03-14-2009, 10:30 PM
the 2 hole mounts for the 2425 have to be found by cutting away the cork gasket...

The very *first* generation 2425's had a straight nose and were painted gray = and the whole driver was assembled with allen bolts.

And the "S" version ( 2425HS ) was used in the first gen JBL / urei monitors and early theater stuff.

Later JBL renamed it the 2426 and used a removable "snout" - and also produced a 2" exit version called the 2427

Many people thought the "S" meant special but my contact at JBL called the 2450 version as used in the DMS monitor ( 2450SL ) as the "snoutless" driver and that is what shows up in the service manuals...:)

no kidding...

Mike Caldwell
03-15-2009, 07:23 AM
I ordered four of the 2425's when they first came out. When they came in two of them were gray bolt together style, actually mine were a light tan color.

readswift
04-27-2009, 05:31 PM
quick question: found some blown 2425 on ebay, but the screws holding the driver together have apparent rust on them (they are orange), well only one of the two appears to have rust. Magnets have that protection thingie other 2425 may lack. Is that rust thing any problematic? I can replace those I have screws like that out of a very bad shape 2425, I could even rebuild it to a degree I presume. What do you think, please let me know , thanks!

Mike Caldwell
04-27-2009, 05:40 PM
If the just the screws are rusty no big problem, if the the inside of the drivers are rusted voice coil gap, phase plug top plate that could be a problem. If there is internal rust and it's light with a really good cleaning up you would be ok. There is not much you can disassemble and rebuild on a 2425 or most compression drivers for that matter at you home garage work bench. You need to de-magnetize the drivers to do a complete disassembly and re-mag with proper shims to re assemble.

Mike Caldwell