Quote
i thought amps were filled with epoxy like ignition coil boxes, like MSD for this very reason.


Nope, none that I have seen.

In some amps, transformer coils and other vibration-prone parts are filled with silicone caulk or epoxy like this, but never the whole circuit board. A couple reasons they don't do this: First, heat dissipation is very important in these amps. Second, filling them with epoxy would make them difficult, if not impossible, to service and repair.

Besides, it would cost more.

2002 Sportage 4dr 4x4 soon to undergo an Extreme Makeover!