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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: Hummm DingerPosted by Paul S on: 9/2/2018
It's hard to give prescriptions for ground problems, since they may be both myriad and complex.  I can offer that my own current system performs best with all 3rd wire grounds disconnected from the wall socket at the component.  For all I know, this may also apply to the PP unit.  In my present case I also need a dedicated ground rod and line for my phono, and to this I connect ground "bleeder" wires from my cartridge, tone arm, phono IC shields, SUT, TT, and phono stage.  In the case of the PP, it must surely load the house ground with noise, and I suppose it also broadcasts noise to any "antenna" that is near enough, as well.  The low level gain on a phono stage is certainly apt to pick up and amplify any signal on its its gain path, no matter how it gets there.

By now, every GSC member who buys a PP must know that their QC is a crap shoot, also their satisfactory implementation may require some work, even when they are in prefect working order.  And close GSC readers know that "expensive" phono cartridges are also prone to QC and general integration problems, so that can't be ruled out until it's ruled out, either.

Good luck!


Best regards,
Paul S

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