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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: The right groundingPosted by manisandher on: 12/2/2010
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 Romy the Cat wrote:
I do not know, Model Two was not supplied with 'ground loop isolators', so I am not sure what you are talking about.
These are described in detail on page 8 of the User's Manual.

 Romy the Cat wrote:
I have two ground – external and internal.
I can't see how two Grounds could be used without having an isolation transformer separating them (as they do on metal-hulled yachts, I believe). Indeed, this is the way I'm going to do things. I've ordered a 15 kva isolation transformer. The 'dirty' ground of the house will be bonded to the shield between the primary and secondary of the transformer and the 'clean' ground from my grounding rod will be bonded to the Neutral of the secondary. Of course, the PP2000 will be fed from the secondary. The PC will be fed either directly from the secondary, or from the PP2000. Maybe it's silly, but I just can't help thinking that it's crazy going to all this trouble to get 'clean' power into my room, only to totally corrupt it with dirty switching supplies from the PP2000 and the PC. Perhaps I should think about using a laptop (on battery) and a PS Audio PPP (which I think uses a linear supply)...

 Romy the Cat wrote:
It is only if the PurePower did not fuck up and do not make tier units to have 40V-50V between neutral to ground as they did in the past.  BTW, I did not measured how much they have now, I shell do it.
This would be good to know.

Ultimately, this all seems too complicated (to me at least) so I think I'll just try feeding the PC from various sources and see if I can discern any differences in sound. "Suck it and see" I think is the technical term.

Mani.

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