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In Reply to: RE: Odd hum issue - suggestions ?? posted by Chip647 on May 30, 2017 at 18:54:59
Could be the unit is picking up AC hum from house wiring. Outlet grounded properly? Polarity of house wiring (Hot, Neutral) consistent?
Are the input wiring of the amp shielded? Grounded at input side, only?
Check all grounding points within the unit. Tight and clean. With least amount of potential between grounding points. Near zero resistance between points of grounding.
Good luck!
Follow Ups:
Don't forget to check the grounds on the RCA jacks.
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