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  1. My unobtainium

    Right now I am checking my components and the other upgrades that I need to make to my 5235 (PS upgrade, IC replacements with OPA627, various other changes gleaned from these forums) before mounting...
  2. JBL 5235 Crossover Boards: Unobtainium Obtained

    Hi,
    For those interested in adapting JBL 5235 active crossovers for use with their JBL systems, a major blocking point has been the difficulty of getting suitable crossover boards.
    I would like to...
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    Lovely Piece of work

    Congratulations on a great job. The original mistreatment was extreme and it is great to see those classic speakers back in operation and looking like they should
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    Very Interesting

    Hi Rich,

    Thanks for showing some of your drawings and build plans. All I can think of is "Get thee behind me Satan". I doubt if this will help though, so I shall give you a call when we are...
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    Biamping

    Hi,
    I'm using Crown F2 and a Pass Aleph 5 ...soon to be replaced with Pass F5. I hope there F5 will support the listening levels that I need but I do expect mid/high improvement
    BTW, are you...
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    Jealousy is an unpleasant thing

    Hi Rich,

    Am I jealous? Am I?

    We need to talk about the next project

    George
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    Fun

    Hi,
    one word that I always attach to listening to JBL speakers is "fun". I guess it really relates to the dynamics of the speakers. That combination, together with a powerful and relaxed bass is,...
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    Which is best K2S5500,S3100,4343 ,4343B and 4333?

    Hi Martin,

    I wish I could answer that. I think the 4343B should outgun the 4343 but I am not familiar with others...never heard them run. Perhaps others can advise?

    George
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    L300 Mod

    Hi Rich,

    I know you are busy .. and I have heard your latest project. I am kinda torn about this upgrade. Firstly, Comparing my pair of 4343s against L300s "out of the box", IMHO, the 4343s run...
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    Great project

    What a great project... but very dangerous. I thought I had got all that refurbishment stuff out of my system, but I can feel the old enthusiasm starting again. I am really looking forward to to...
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    Crossover

    Hi Ian,

    I just saw your note explaining how you chose the frequencies etc. when setting up your speakers. Thanks for that information. Right now I am awash with possibilities but now that the...
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    Those nameplates

    Hi,
    i am looking forward to seeing your definitive photograph of the proper positioning of the plates. However, by the time they arrive, Monday, I shall be on a boat just off Portugal and heading to...
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    Hi Steve, thanks for reminding me about page...

    Hi Steve,

    thanks for reminding me about page 2 of the brochure. I still doubt if JBL really intended to stifle the tweeters with a nameplate, so I'm now brooding on the subject, again. The...
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    Nameplate Position .. the latest...

    Hi,
    well as information on the position of these nameplates continues to pour in, it seems there is no real resolution. I have come across photos showing the nameplates positioned at the top as well...
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    Nameplate Positions

    It seems that photos of 4343s with grilles intact are pretty hard to come by. Worse, it seems that some grilles, like mine, have these plates in front of the tweeters. Unless JBL were doing some very...
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    JBL 4343 Grilles and Setup

    Hi,
    I seem to have answered my own question regarding the set-up. A colleague appears to have a pair of "golden ears" and infinite patience and went through an extended adjustment session with me on...
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    L-Pads

    Thanks for the above .. I think they are the start of a procedure that I could use. Re. the involvement of God in this.... you can give him a helping hand by starting from a clear starting point....
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    Setting those L-Pads

    Hi,
    I did see Ian's post.. but I could not understand why he chose the frequencies that he did and some of the instructions were a bit (IMHO) ambiguous.
    Anyway, the plan is still to listen for a...
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    Setting Up the 4343s: Help / advice wanted

    Hi,

    can anyone point me to a clear procedure for setting up the L pads on the 4343s? I have a sound meter and access to a signal generator, but I am not sure of the frequencies to choose nor of...
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    Hi, it seems that your speakers had a troubled...

    Hi,

    it seems that your speakers had a troubled start just like mine... starting out in a garage. I really would encourage you to finish them.. but always be able to get them back to the original...
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    JBL 4343 Renovation

    Hi,
    Years ago I promised a description of a 4343 renovation. It has taken me nearly 5 years to get anywhere with this... due to work pressure and the number of steps in my house. Neighbours who...
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    Bi-wiring

    Hi Chris,

    thanks for the nice crossover diagram.
    I have not (yet) bi-wired my 4343 speakers but I am interested in your conclusions about bi-wiring. In the past I have found that the benefits...
  23. Thread: 5235 Mod

    by georgebrooke
    Replies
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    Card manufacture

    Hi,

    Thanks for the advice. Guido , sadly, is out of cards, but I think that I have enough information now to build my own.... assuming no major snafus.
    It has been a bit of a rabbit-chase.. the...
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    Card Design

    Well thanks to everyone on this. It seems that in the 5235 manual the card design shown is for the simple non-populated cards. In the earlier crossover manuals they actually show populated card...
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    Hi, thanks for the reference, but I could not...

    Hi,

    thanks for the reference, but I could not find any schema which would let me build a card myself.
    Am I missing something here?

    George
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