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60 cycle subwoofer hum elusive ground
Posted 02 January 2013 - 09:41 PM
Posted 02 January 2013 - 10:28 PM
Posted 02 January 2013 - 11:31 PM
Posted 03 January 2013 - 05:38 PM
Posted 03 January 2013 - 05:57 PM
Posted 03 January 2013 - 06:41 PM
Posted 03 January 2013 - 06:49 PM
I haven't tried a ground loop transformer but will tomorrow when Radio Shack opens. As far as grounding to plumbing goes, the equipment is far removed from a way to do that but if the ground loop protector doesn't solve the problem I will at least test that approach with a long extension cord. I'll post results of this experiment.
They work wonders... I use them a lot in Car Audio, especially with things like Sirius/XM that loves to use 5V, which means the ground will never (ever!) be on the same plane.
First you want all equiptment grounded to the same point, that's usually the best thing. If that doesn't work, the Ground Loop.
The Third thing is what we call a "ground lift", but I won't explain that as I don't recommend it unless you know what you are doing... and 99% of the time the Ground Loop Isolator does a good enough job without causing a safety issue.
Posted 03 January 2013 - 08:44 PM
Posted 05 January 2013 - 09:17 PM
Posted 06 January 2013 - 01:14 AM
Also if your receiver has the ability to attach a turntable, there should also be a ground lug for it that you can try. I have done this in the past and it worked great.