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Thread: 2231A or 2235H in 4333B

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    2231A or 2235H in 4333B

    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!

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    Super Moderator Hofmannhp's Avatar
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    2231 2235

    Quote Originally Posted by 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!
    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
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    Here's a good read on the subject !

    - 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 ).


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    Quote Originally Posted by Peter Becker
    I have the 4333B Monitors.There is a 2235H inside.Is it better to put 2231A with Alnico
    Oh hell no!

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


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

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    Senior Member GordonW's Avatar
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    Quote Originally Posted by Hofmannhp
    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.
    This Is Gordon's Page: www.geocities.com/gordonwaters

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



    I will keep the OEM 2231A's should I decide to sell the 4343's down the road.
    This message comes from JBL Dog

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    Senior Member 57BELAIRE's Avatar
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    136h

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

    RBH

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    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, 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.

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    Quote Originally Posted by 57BELAIRE
    Is the 136H the consumer version of the 2235 (2235H)?

    RBH
    The 136H is the consumer version of the 2231H. I don't believe there is a consumer version of the 2235H.
    This message comes from JBL Dog

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    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.

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    Administrator Mr. Widget's Avatar
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    Quote Originally Posted by JBL Dog
    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.

    Widget

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

    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.

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    Quote Originally Posted by Mr. Widget
    Sure there was... it was used in the B380. It was designated 2235H.

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

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

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    Administrator Mr. Widget's Avatar
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    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

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