Reply To: Getting rid of noise, Line-Active UPS System or Isolation Transformer

[sb-woo]

Also, a couple of things to note. The noise is not volume dependent. It is there even when system is silent and it does not go up or down with the volume. Another thing i noticed.. I have two independent subwoofer outputs on my receiver, those go to a minidsp then they go to the amp if I have one channel of amp output going to one speaker I can hear the noise, even if i disconnect that speakers RCA connection. As long as there is an RCA connected the noise will come through but if I disconnect both the noise goes away.