I can hear a minor hum when my head is close to the tweeters. Can't hear any hum from the listening position.
Do you hear the hum when music is playing ?
Source :
SONIC TRANSPORTER i7 > EtherRegen (Uptone JS2 PSU + Mutec REF 10) > Sonore ultraRendu (Farad PSU ) > Singxer SU1 with SOtM sCLK-EX upgrade (Final Touch Audio USB + Paul Hynes PSU + Mutec REF 10) > SW1X DAC III Special (Final Touch Audio AES)
System :
Wilson Audio Sophia MK III speakers
Supratek Grange 300B pre-amplifier (non-phono version)
PS Audio BHK Signature 250 stereo power amplifier
Sunfire XTEQ12 subwoofer - pair