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Need suggestions please! Electrical noise in my system and it's driving me crazy!

So I have been battling with an electrical noise in my home since I moved in over a year ago. I've had two electricians check it out and have done hours of trouble shooting myself. 

I'm getting a hum or a buzz from anything with a transformer and a buzz through my speakers. Standard driver speakers and my Maggies. The house was built ten years ago and has everything up to code. Underground electrical lines. 2 ground rods outside the house. Just added a ground to all the copper plumbing and gas lines. I have a 200 amp panel in the house and a 100 amp panel in the garage. 

I have a Furman IT Reference 15 power conditioner and it's not doing jack. It's actually humming too. As far as trouble shooting I've mixed and matched equipment, speaker, and cables to eliminate that factor, I've also turned every breaker off one by one to find if it's something in the house that's dirtying up the electrical but even when I only had the one breaker that powered me system on, the noise was still there. 

I'm going crazy because my relaxing time is sitting and listening to my music in a dead silent room with a dead silent background and I no longer have that anymore. I can hear the buz, hum, and even a high pitch noise and it's ruining my hobby. Both electricians I've had in the house have no clue and and think I'm nuts anyway. 

Has anyone had an issue like this before? Could you fix it? How did you fix it? Please help! I'm about ready to sell all my equipment because it's annoying to listen to. 

Thanks,
Brian
gearheadmac

Showing 5 responses by erik_squires

erik_squires
16,644 posts
 
Coaxial ground isolators are fabulous ideas, I always use one just in case, but easy to test. Just disconnect any and all incoming coaxial leads.

http://amzn.to/2wzJ3Cq

There are also specific one's for satellite antennas, which need power injection. Also, cable/satellite antennas should be bonded to the house ground, a step installers conveniently skip.
erik_squires
16,644 posts
 
You don't by any chance have multiple ground rods placed far apart?
erik_squires
16,644 posts
 
Well, if no house circuit helped, that sucks. One of your power conditioners has balanced outputs, right? I just don't know how many.

Are all the outlets balanced? If not, move everything over to the one's that are.

Listen again.

E
erik_squires
16,644 posts
 
Two things to try:

1 - Turn off every other circuit in the home. You could have a dimmer somewhere that is putting DC on your line.

2 - Not sure about the exact Furman units you have, but try using the balanced outlets on the Reference model. Use power strips to extend them if necessary.
erik_squires
16,644 posts
 
Do you mean you are getting a hum through your speakers, or that the equipment is mechanically humming?

Best,

E
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