Disconnect the DAC. Noise gone? It's the DAC. Noise still there? It's the amp.
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?