Do you have satellite tv? If so is there a phone line connected. I had trouble years ago and was able to acquire a isolater for the phone line and the buzz was gone. Another common contributor to this type of issue is the ground to the component. Have you tried lifting the ground to the Parasound? I have 5channel amp, that I have the ground lifted to eliminate a light buzz in the rear speakers.
Can't tell,if my house is properly grounded
Hey guys, I have a low level hi/low buzz that is coming through my speakers, not dependent on the integrated tube amps volume. It is amplified when I turn on my Parasound JC3+ Phono preamp, but only slightly. I have the power cords going to the same outlet. I tried running their power through my Furman Elite Power conditioner but that changed nothing. I ran an independent ground wire and checked all the components in various configurations to no avail. I disconnected all the tv cable to make sure it wasn't coming from there and that solved nothing either. I turned off everything in the house I could' no change. I checked my ground outside at the rod and it is all solidly connected, however the depth of the rod is unknown.
any other thoughts before I call out an electrician?
any other thoughts before I call out an electrician?