Of all the annoyances that can afflict any audio/video home theater or even a simple stereo installation, the notorious “ground loop” may well be the most difficult and persistent one to track down ...

You've just connected your system and there's a buzz or hum that won't go away. You're running your gear through power conditioners and you're beating your head against the wall trying to figure out ...

I just built a new computer system and all is well except my speaker system.<BR><BR>The subwoofer of the Altec Lansing AVS300 system has a loud hum. The subwoofer is not shielded so I set it 3 feet ...