Hum from speakers


Hello all.  I have a 10 year old EAR 890 amp.  Recently, I've noticed a low hum or buzz coming from my speaker tweeters.  I don't notice it when playing music, but it is annoying nevertheless.  It wasn't there before.  Only recent change is I had my dac, a Bricasti M1, upgraded by Bricasti to the new MDX board.  Any ideas what is going on?
robal

Showing 1 response by ghdprentice

A hum can be a ground loop. Are all components plugged into the same outlet. If not try that.

is it a hum or buzz... the imply different things.