HD Tracks on Studio / Apple Silicon - Loud Hissing

Anyone else experiencing Loud hissing when playing HD tracks on Studio. My set up is MacMini (Apple Silicon) / BigSur 11.2 streaming direct to a Naim Uniqute over wired network. All HD tracks from Tidal and Qubuz can’t be listened to as there is a loud hiss across the whole track. I’ve pinged support but had no response for over a week now (debug info sent).