Electromagnetic interference


Just bought a Conrad Johnson classic 2 preamp. Getting 60 cycle hum through speakers. Instructions say put the preamp well away from the amp. How far would that need to be?
128x128heterodon
It's very simple to move the preamp away and observe the effect. As Nike says,just do it. That's your 1st step.

There are many reasons a 60 cycle hum can occur in a system. More info about your system would be necessary to determine the issue. How far apart is the preamp and amp now? 2-3 feet?