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!
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
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...
At least worth a check with a pen light.
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