Brian, the noise was a mechanical hum from the transformer in the power supply of my Supratek. Rather loud. Now there is just a faint hum that you can hear if you put your ear near the hole in the top of the power supply.
Before I could easily hear the transformer humming from my listening chair. And BTW, the AC Offset Killer didn't seem to affect the dynamics at all, nor did it seem to add any coloration.
I used solution B.
Before I could easily hear the transformer humming from my listening chair. And BTW, the AC Offset Killer didn't seem to affect the dynamics at all, nor did it seem to add any coloration.
I used solution B.