I am hearing a “small” amount of hum with no inputs selected. By small I mean you cannot hear it if your ear is 2 to 3 feet away from the speakers. Is this meant to be “acceptable” or should there be zero hum.
There is a very small hum with just the DAC connected and no power to any phono component. If I add power to phono components hum slightly increases.
BHK Signature Preamp
BHK Stereo 250 Power amp
Power Plant 12
Sutherland 2020 phono preamp
Dr. Feickert woodpecker turntable
Kiseki purpleheart cartridge