PSW650 turning off with dial AND humming noises with shock!

infinitiqx4
infinitiqx4 Posts: 80
edited January 2003 in Speakers
1. Whenever I adjust the volume dial on the front of the PSW650, the sub turns off for a few seconds. Is this normal?

2. This problem is unrelated and has happened twice now. My sub is on a metal cabinet with everything else since I have no space in my dorm room. But with this dry winter weather I can get shocks from touching the TV or cabinet... then the subwoofer turns on and starts a humming sound. If I turn on a source to the sub then the hum goes away. In a few months the weather will get better and I'll be moving to a larger space... but how bad is this in the meantime?