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In Reply to: RE: Switching power adapters & noise? posted by David Anderson on January 18, 2008 at 04:14:27
Quite simple
You have a ground loop
There are a few ways to address this issue
Lift the ground on your mixer with a ground lift
Lift the ground on your amplifier with a ground lift adaptor
You can try one at a time
Or you can go through the process in RANE NOTES
at Ranes site
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