Hum in Speakers with New Dedicated 20 amp Circuit


I just ran some 12-2 from a new 20 amp breaker and installed a dedicated outlet for my system. Now I get a very audible hum in both channels. If I switch back to the shared 15 amp outlet, no hum. I checked the new outlet with a tester and it checks out as wired correctly. At the electrical box, the black wire is connected to the breaker and the white and ground are attached to the same ground strip. I’m using a 20 amp receptacle.

Anyone with thoughts on how to resolve?

mjjw

Showing 1 response by tkhill

Call a licensed electrician. My brother, the E.R. nurse, makes his living off of amateur electricians and guys whose last words were "Hold my beer and watch this".

Make sure the sparky who comes to your home is the license holder & not an unsupervised apprentice or journeyman, as is often the case here in D.C.