Component grounding
@atmasphere -- Thanks for this. You're right, it's complicated. (You are also right that the grounding post made no difference.)
I'm starting to wonder if the problem has more to do with the DAC. As I wrote above, when I disengaged the preamp section of the amplifier to control the volume with the DAC output control, the hum came back, even though I was still using the modified power cord on the amp. But then again, this didn't happen with two other amps I had on hand. |
@rfprice - What happens if you take the Shunyata Power Condtioner out of the system altogether? What components do you have? Thanks |
@atmasphere -- No no, I meant the preamp section of the integrated. It has a feature that let's you bypass the preamp section and use the output control on the DAC instead. When I did this, the hum came back. I don't know what that means, but you're right, the issue must reside with this particular amp because I've never had a hum otherwise. |
@williewonka -- Exactly. When I unplugged the amp from the Shunyata (using the non-modified power cord) and plugged it into the free receptacle on the wall duplex (the Shunyata occupying the other receptacle) the hum disappeared. So that would suggest . . . what? That the isolated zones on the Shunyata are not so isolated after all? |
