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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.