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Thread: Are these genuine Beryllium membranes?

  1. #1
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    Are these genuine Beryllium membranes?

    A guy wants to sell me his JBL 2435HPL but cannot confirm they have the Be membranes (he bought them on eBay a decade ago and haven't been used since). I am no expert myself either so I would appreciate if someone could confirm whether these look like the real deal or not. This is what they look like:

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    Provided these are Be, what are they worth? I see the newer Aquaplassed 435Be going for between $700-1000 a pair ever so often.
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  2. #2
    Administrator Robh3606's Avatar
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    They sure look right. They are a dull dark grey, not trusting the picture? The aluminum ones 2431 are a bright silver color. Worth? Check eBay

    Rob
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    "I could be arguing in my spare time"

  3. #3
    Senior Member grumpy's Avatar
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    Figure on replacing the ferro-fluid/oil in the gap (if not done by previous buyer or unknown). Looks like the stock Be dia.

  4. #4
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    Thanks guys, that’s reassuring. Is it difficult to top up the ferro fluid and is it standard ferro oil?

  5. #5
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    You'll need some nice H9800 horns and ME150HS drivers to go with them so give me a pm.
    https://pinkfishmedia.net/forum/thre...roject.119290/
    Use the correct fluid=APG S38N from Ferrotec

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