Had a slight buzz with RCA cables between my Marantz Pre-Amp and my Classe Sigma2 Amps on only 1.5 meter runs, all on a rack mounted system. I tried everything to get rid of that ground loop, everything powered through the same 20Amp breaker and Audioquest Niagara.
Switched to XLR - all gone and couldn’t be happier. I’m sold. XLR not just for long cable runs.
Switched to XLR - all gone and couldn’t be happier. I’m sold. XLR not just for long cable runs.