2. tech-talk
  3. 1091507720

Loud Hum

I recently bought two Brystons 7Bst's to power my Revel Salons. I also have a Bryston 1.7 and I am getting a LOUD hum from ALL speakers (I run the center and rears with a Proceed HPA 3 while I purchase other 7BST's). The Proceed did not make the HUM while I was using it to power the two Salons and center channel, but now that I am using it to power the center and surrounds it is VERY loud. My Revel B 15 ALSO has the HUM (although not so loud).

Any suggtestions?

Thank you!
dynasys

Showing 1 response by rsbeck

rsbeck
887 posts
 
I had a similar problem. I solved it by installing dedicated 20 amp circuits.
You've got a lot of amplifiers drawing juice and when they don't get the juice they want, the transformer hums. Not exactly sure why -- I'm a layman when it comes to the technical side and I cannot recall the explanation I was given.
Everything in my system with a transformer, amplifiers, sub-woofer, and even
AC Conditioner was humming. But, when I installed the dedicated 20 amp circuits, all humming stopped. System is quiet as a stone.
More to discover