Ground Loop Hum with balanced XLR cables only


I've been working to track down a ground loop/hum coming from my speakers. I've got an Integra DHC-9.9 connected via XLR cables to a BAT VT-6200 amplifier. I spent hours trying all sorts of things to eliminate and finally I swapped out the XLR cables for regular RCA unbalanced cables and voila the hum was gone.

Any ideas why this would be?

Thanks,
Nisi
nvlashi

Showing 1 response by nvlashi

Just got back from much needed vacation and just catching up on all the responses. The XLR cables are from Signal Cable and I spoke with the cable builder Frank and he assured me that the cables are wired correctly. Now of course I could switch to single ended cables (RCA) but I'd like to keep the XLR cables if possible. I'm going to try and lift pin 1 on the input side of one of the cables and see if that works. I'll keep everyone updated.