Originally Posted by Ratbert
Did you resolve the issue with the noisy Prime PSU?
It's all being in process of being sorted as expected. Was asked to confim hum on electrical supply other than my house so checked that it still hummed at work - which thankfully it did as I don't know what I could have done had it only hummed at home.

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).