Blatisi:

1. Your amp is almost surely in need of replacement, and if you are willing to do the swap, Axiom will likely send you a replacement unit rather than do shipping both ways on the entire subwoofer. You would be saving them money. They will appreciate the efforts.

2. I posted the quote from the owner's manual to clarify whether or not the amps had an "auto stand by" mode. They do.

After you call them, please post what you thought of the experience of dealing with the issue. smile