speaker ground hum

Jea48, I'm not a technician nor an electrician. As a result, I'm not in a position to discuss the validity of the steps provided.

I simply posted a checklist provided to me by a technician from an audio manufacturer. It has been very helpful to me in my troubleshooting a buzz in my system.

There are further steps from the tech, which were also helpful, but I think I'll not post them since I'm not qualified to discuss why they may or may not work.

Good luck to you, OP! Buzz/hum is a PITA to diagnose and eliminate, IMO.

There are further steps from the tech, which were also helpful, but I think I'll not post them since I'm not qualified to discuss why they may or may not work.
06-14-10: Tvad

Sorry Tvad,
my post was not meant as a criticism of your post. I am far from an expert when it comes to audio....
I hope my comments on this thread or any other thread does not sway someone from posting.

Again please accept my deepest apology....
Jim

No apology necessary, Jea48. I'm just not equipped to defend the checklist's validity without further study of your criticism, which I admit I am too lazy to do.

I will say the source of the buzz was finally traced once the tech instructed me to systematically plug all the components into an extension power strip that was alternately plugged into several different outlets in the room.

The problem turned out to be lack of common ground between certain outlets.

Raybo76, Many times the culprit is the Cable TV cable or an outside antenna cable. Make sure you unplug all cables of these to test.

All excellent suggestions. If all else fails have
your Cable TV ground checked where it enters your house.
This eliminated a terrible hum in my family room
surround system. Good luck.