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Thread: E155-4 testing (long)

  1. #16
    Senior Member grumpy's Avatar
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    Quote Originally Posted by macaroonie View Post
    I see the cone ID is MW xxxxx

    That's MWA in Arizona I think , Ken will
    confirm or not , were they Waldom ?
    Could well be... MWA web site requires a login to get anything beyond a listing of supported mfgs (or I'm clueless).

    Should have various repair bits delivered in the next few weeks, for both drivers.

    -dave

  2. #17
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    Quote Originally Posted by gasfan View Post
    Not sure what the composition is but I would use JBL's own. Probably the black one used for the dust cap. But you need a long thin nozzle available at hobby shops for RC planes etc. so you can reach in there and lay a neat bead ideally just the way it sits in the pic, then press it back into place so it's glued to the former and not just to old glue.
    I'd recommend not to use this glue at the VC to spider connection. An epoxy is madatory here, as it is between VC and cone. And the RS-3087 isn't one, as you can easily see: RS-3087 basically is a contact cement, hence soluble in MEK, while an epoxy after curing isn't. RS-3087 isn't dedicated for applications where considerable forces come into play.

    Best regards!

  3. #18
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    Yeah, I don't know what was used originally but it's clear from the pic that the vc/cone connection is intact. That spider to cone/vc glue line looks very minimal, no wonder it broke there. My 2245 did not separate, rather it actually tore right beside the glue line, it seems just because it was so hard there and did not allow the spider to flex but instead pryed on it til it broke

    Imo, that glue line should be strong but flexible

  4. #19
    Senior Member RMC's Avatar
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    RE "... vacuum out the old foam filter bits ... That crap in the vent sure looked "stock"

    The only somewhat sad news with regards to the 2220H driver shown is that JBL's mention of "Foam vent plug or screen" doesn't appear to be exact. In the present case its not one or the other, but both of them as shown on pic posted. Makes me feel the same surprise may happen with other drivers too...

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  5. #20
    Senior Member grumpy's Avatar
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    At least worth a check with a pen light.

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