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White noise when XLR connection is used ...

Hello everybody,
I have strange problem when my monoblocks (Clayton M100) are connected to my CDP Audio Aero Capitole mkII with XLR interconnect, there is pretty audible white noise. When I disconnect XLR connection noise disappears. When Claytons are connected to CDP with RCA interconnect there is no noise, dead quiet.
Any idea why ? Any suggestion. Is not supposed XLR to be quieter connection ? I have tried many different RCA, XLR cables, always the some, so problem is not in a particular cables make, but in the connection itself.

Thank you for reading.
sorlowski

Showing 1 response by sorlowski

sorlowski OP
236 posts
 
Thank you for answer,
if tubes are causing the problem why there is no noise when RCA is used, and why noise level is the some in both channels, both tubes degraded at the some degree ?
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