Turn the woofer amp off and disconnect all IC cable. Turn it back on. If the cones pump, it's the amp causing it.
Turn-on and turn-off thumps aren't necessarily bad but depend on severity IMO. How far do the cones move on turn-on/off?
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Turn-on and turn-off thumps aren't necessarily bad but depend on severity IMO. How far do the cones move on turn-on/off?
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