Axiom Home Page Forums General Discussion Technical Questions Subwoofer buz

Nope, doesn't sound like the cable. Even the low end Monster cables seem to be decently constructed.

There was another thread on here a couple of days ago... turned out to be a ground loop from either cable TV or satellite, not sure.

Can you try disconnecting all the sources and see if you still get the hum when listening to FM ? If no hum then add sources back in (ie reconnect cables to receiver/amp) and see when the hum starts.