I've recently swapped my old Rotel RA12 amp for a new Naim Nait XS2.
Great amp, but since switching over I'm very aware of a ground loop buzz caused by my Sonos Connect. I've tried different interconnects, plugging the amp and Connect into separate power strips, even adding a ground loop isolator (which just made the buzz worse).
Bearing in mind my complete lack of technical knowledge or skill, is there an easy way to solve this issue? Someone from the shop which sold me the amp came out and fiddled with various combinations of fancy power strips, super-expensive leads and other things, but couldn't solve the problem. He did suggest, though, that the problem may be because the plug on the Connect isn't earthed.
Any suggestions on a straightforward solution?