Join Date: Jan 2009
Location: upstate New York
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to quote DonH50 "It looks like a glue they used to minimize vibration of certain components, the PCB, and the leads through the chassis. Pretty common for amps inside speakers where they are exposed to high-pressure sound waves."
Don is right, it is to minimize vibration. Some high end speakers, like Sonus Faber, encapsulate the entire crossover for this same reason.
The lazy man finds the easiest way ... Ben Franklin