I think a Mondial magic box will help. I Solved a similar problem with one. //www.klipsch.com/mondial/index2.asp?path=/products/mondial/index.asp?frame=y&id=&line=&1
speaker buzzing
I have bought a new power amp and am now getting a buzzing sound (NOT a hum) from my speakers even when everything except the amp is turned off. If I disconnect the cable TV line it clears up. If I connect the shield part of the cable but not the inner wire, it is still fine. Will a ground loop isolator fix this and where can I get one?