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Original Message
RE: Dish receiver causes speaker hum with three prong plug?
Posted by 6bq5 on March 29, 2021 at 21:41:45:
When you use a 2 pronged plug on your amp (that would otherwise use a three pronged plug) you are floating the ground-
I have a very similar problem when I use a computer to feed the HiFi w/ music - if the Computer is grounded - or the monitor - I get a Hum-
If I float the ground for the computer/monitor- no Hum!