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What Silenced the Ground Loop?

I have a ground loop in my system that is audible from the speakers as the volume is turned up higher. I have a Blue Circle integrated, and one of my sources is a Raysonic CD128. I've had the Raysonic connected single ended. I purchased an inexpensive XLR interconnect just to hear the sonic difference since my Blue Circle has balanced cd inputs and the Raysonic has xlr outputs (not truly balanced).

Once I connected the xlr cables between the Blue Circle int and the Raysonic, the ground loop is gone. Total silence. I can turn the volume on the integrated all the way up and the speakers are silent.

What is it about connecting via balanced inputs on my integrated to not truly balanced outputs on the cdp that killed the ground loop? Thanks for your thoughts
foster_9

Showing 1 response by palasr

palasr
516 posts
 
You might try using a cheater plug to "float" the ground at the AC plug(s) of both components; I'd also try leaving everything as is (with the RCAs connected per usual) and connect a wire between both units to effect a chassis ground. There is NO simple solution for ground loops, or differences in ground potential. Trial and error are the only sure curatives. Most can be solved with patience; some cannot. Happy hunting.

-Richard
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