2231A or 2235H in 4333B

[Peter Becker]

I have the 4333B Monitors.There is a 2235H inside.Is it better to put 2231A with Alnico in or is the Sound with 2235H better?Thanks for Info!

[Hofmannhp]

I have the 4333B Monitors.There is a 2235H inside.Is it better to put 2231A with Alnico in or is the Sound with 2235H better?Thanks for Info!

Hi Peter,

the 2231 is the original choice. The difference between the 2231 and the 2235 is an additional mass ring with about 36g glued under the dust cap in the 2231.
So the fres of the 2231 is about 16Hz against 20 Hz with the 2235.

HP

[Earl K]

Here's a good read on the subject ! (http://audioheritage.csdco.com/vbulletin/showthread.php?t=4031)

- Personally, I say be happy that you already have ferrite magnets .

- Also, the 2235 has greater Xmax ( cone excursion capability ) than the 2231, which is way more important than magnet type ( IMO ).

:)

[4313B]

I have the 4333B Monitors.There is a 2235H inside.Is it better to put 2231A with AlnicoOh hell no! :bash:

If you've got the 2235H already then you're :smthsail:.


BTW - The 124, 2203, 136, 2231 and 2235 use the same MCR.

[GordonW]

Hi Peter,

the 2231 is the original choice. The difference between the 2231 and the 2235 is an additional mass ring with about 36g glued under the dust cap in the 2231.
So the fres of the 2231 is about 16Hz against 20 Hz with the 2235.

HP

The difference in resonance of a 2231 vs. a 2235 is not because of the mass... they have pretty much identical moving mass. It's because of the "softer" spider (in reconer's parlance, it's a 'B' stiffness, on a scale of 'A being softest and 'E' being stiffest) opposed to that of the 2235 (which uses a "C" stiffness spider).

With the longer voice coil and more "controlled" suspension, the 2235 definitely has the edge in distortion and output capacity on the bottom end, with about the same frequency response in its upper range as the 2231. Definitely an upgrade... unless you're SPECIFICALLY going for "period accuracy"... or are a "collector", instead of a "music listener"...

Regards,
Gordon.

[JBL Dog]

I have the 4333B Monitors.There is a 2235H inside.Is it better to put 2231A with Alnico in or is the Sound with 2235H better?Thanks for Info!

I've replaced the 2231A's with 2235H's in a pair of 4343's. I'm REAL happy with the results!

:applaud:

I will keep the OEM 2231A's should I decide to sell the 4343's down the road.

[57BELAIRE]

Is the 136H the consumer version of the 2235 (2235H)? :blink:

RBH

[Chas]

I just changed my 2231's with 2235 cone kits over to a ferrite 2235H's (donated by my 4430's) in my S-22-2's. In Sterophile parlance, they just sound better, :p it could be because of lower distortion, I don't know. Note this is based on having them running 100 - 800 Hz. 800 Hz being the same as the cut-off in your 4333B's.

[JBL Dog]

Is the 136H the consumer version of the 2235 (2235H)? :blink:

RBH

The 136H is the consumer version of the 2231H. I don't believe there is a consumer version of the 2235H.

[Alex Lancaster]

:) The 136H is the home version of the 2231H, same goes for "A"´s, (AlNiCo´s) .The 2231 and the 35 have the mass ring, the 2234, (like in 4435's) does not but it is otherwise the same.

I would use the 2235H´s.

[Mr. Widget]

I don't believe there is a consumer version of the 2235H.

Sure there was... it was used in the B380. It was designated 2235H. :applaud:

Widget

[4313B]

Isn't that hilarious? The B380 and B460 use "Pro" drivers! Oooo, spooky! :rotfl:

It sure beat having to explain the use of "the same drivers as used in JBL's Professional monitors" like the L300 did with the 136 versus the 2231, etc. :p

[JBL Dog]

Sure there was... it was used in the B380. It was designated 2235H. :applaud:

Widget

So, the 2235H was used for both pro and consumer use?

[4313B]

Yeah.

Others made the crossover as well. LE10, 115, 116, 127, 128, 2242, 2245, etc jumped ship and started being used in Pro stuff.

[Mr. Widget]

I can almost understand why they painted LE15As and 2215s different colors and called them different names, I understand why they used acrylic for the wedge on the 077 and painted aluminum for the 2405...

What I have never understood was why the 136A and 2231A used different return pot castings....? The 077 is obvious... it looks cooler for the domestic market, the paint and naming on the 375/2440 etc. was probably internal turf wars, but in the case of the 136A/2231A why in hell would you make identical drivers that were not actually identical?

Widget

[4313B]

I have got to remember to ask about that one.

[4313B]

It's as simple as having different castings and paint for Pro versus Consumer.
They really are 100% identical in functionality.
I'm glad that's finally put to rest! :)

[herve M]

Peter, I have 4333a, with 2231a, original cone. A test with the 2235 is disappointing. Not low medium, compression gets along too much.
herveM

[Guido]

Yeah.

Others made the crossover as well. LE10, 115, 116, 127, 128, 2242, 2245, etc jumped ship and started being used in Pro stuff.

I remember the sentence "JBL Pro systems are not intended for home use"
:moon:

[4313B]

I remember the sentence "JBL Pro systems are not intended for home use"
:moon:En Garde!

:duel:



:rotfl:

[Guido]

:hmm: Ahaaaa....

So the consumer versions are somehow dampened to produce less sound pressure.... :slink:

:rotfl: :rotfl: :rotfl:

[aust-ted]

I remember the sentence "JBL Pro systems are not intended for home use"
:moon:

Interesting. I have also wondered why JBL set up this confusing dual numbering system which drives newbees like me mad. Then I had a thought, could it be to support two different dealer networks and avoid competition between them. I know of a recent example where Infocus made a projector which was suitable both for home theatre & office presentations (X1) and then quickly brought out two different models - one essentially a rebadged X1 (4800) for the home theatre market and a down optioned one (X2) for the office market which was less suitable for home theatre.

The beauty of the X1 was that you could haggle with both the office and home theatre dealers to get the best deal and that was probably why the model was discontinued in spite of being a good seller.

Regards
Ted

[4313B]

:hmm: Ahaaaa....

So the consumer versions are somehow dampened to produce less sound pressure.... :slink:
No, that wasn't the point. The real reason was because once you say something shouldn't be used a certain way everyone is going to want to use it that way. If you say "JBL Professional Products are not intended for household use" everyone and their brother is going to want to drag a pair home. :D

It worked in Japan... Unfortunately it didn't work all that great here because JBL was already a hated brand name amongst the "audiophile" crowd.

Yes, there were two networks and they did seem to discourage interaction. JBL did make a few "Pro" models available to Consumer Dealers. Naturally Pro Dealers wanted nothing to do with any Consumer stuff. These days all the 43xx stuff is Consumer stuff. :rotfl: