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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: The ground and the PP2000Posted by drdna on: 2/18/2009
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 Paul S wrote:
Every case of a "dedicated ground" I have seen, including my own, involves only the redundant "ground" wire. The "ground" wire may not be useful for every component, and it can actually introduce noise in some cases.
Today listening to the PP2000, the HF began to re-emerge a little bit, which is sooner than I expected. It is quite subtle and peeks out once in a while, but it seems to be forcing its way through a bit, so it is not entirely pleasant. I hope this will resolve. The HF that does show through is very fine and softly textured is the best way I can describe it.

What was more concerning is today some 60 Hz hum also re-emerged in the system, sounding like a vibrating cell phone going off in the back of the room. It was interesting how it was sort of localizable, but the hum is annoying. As everything is plugged into the PP2000, I am not sure how to deal with it.

Adrian

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