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Any ghostbusters out there??? HELP

I recently received my ARC REF2 and my Pass Labs X600 back from the manufacturer, where they went through minor repairs, adjustments. and new tubes in the preamp. I connected evrything back up and when I use the phono only, I pick-up an NPR station in the background. I do not have a tuner, or antenna, and this only occurs when the preamp in set on phono.

Any ghostbusters out there who can help
rosstaman

Showing 1 response by joeabrams

joeabrams
132 posts
 
Sounds like the phono cable is acting as an antenna for RF interferance. You can test this theory by simply disconnecting the phono cable & ground wire from the preamp & changing nothing else. If the problem goes away, then you need a better-shielded phono cable. If the problem is still there w/ no phono connected, then somebody may hv messed up at ARC when they were putting yr preamp back together.
Best of luck.
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