How do I know if it is the receiver? I have tried reconnecting the rca cable to the woofer out on the back of the receiver. The receiver is about a foot away from the wall, so it is not getting pinched at all.
I have an older Sony subwoofer that has been giving me trouble lately. I end up having to turn it off and back to reset it as it will emit a continuous humming sound (very loud as if it is getting a continual heavy input from the receiver) even when the audio output doesn't warrant the...