Earthing

Posted by: StephenK on 09 April 2009

Hallo!

Reading several posts about the earthing principle I am a little confused, maybe someone can clarify.

As I understand correct earthing is important with Naim, and Naim equipment has a strict earthing path. Originally the earthing reference was the preamp's power supply, e.g. HiCap or Poweramp. Recently I read that the earthing now goes via the CD Player, which, if I understand correctly, is now the reference. It was also mentioned that it is not a good idea to connect two naim CD players at the same Preamp for earthing reasons.

Does this mean that if a new CD player is connected to e.g. a chrome bumper 32 with Hicap, there are two earthing paths?

Does this further mean that there are compromises when old an new boxes are combined, has the Hicap changed? Are two spurs when old with new is mixed better, while one spur is better with the same generation?

Or is it something completely different with correct earthing?

Stephen
Posted on: 15 April 2009 by fatcat
quote:
Originally posted by StephenK:
Dear all!

Thanks for the comprehensive answers, however, I am still not sure I understand completely.


Stephen

The Hicap(chrome, olive or black), flatcap and supercap are the systems GROUND or zero volts reference point. I.E. the preamp and power amp circuits are referenced to this point.

The CD player simply ties the system ground or zero volts to earth. The system reference is still in the power supply.

The confusion arises from the overuse of the term earth.
Posted on: 15 April 2009 by Patrick F
The difference is AC earth and DC reference to ground. 2 different things. 2 different purposes.
Posted on: 16 April 2009 by Adam Meredith
quote:
Originally posted by pcstockton:
****
Didn't know this was a taboo/non-hifi subject.
Why shouldn't I be able to learn how to correctly earth my kit without the presence of a Naim CDP.
Anyway.... thanks again for all who helped with this. I suppose I will try something and keep the results to myself.
Sorry for mucking up the forum with such unimportant matters.


Rather than get the hump - why not read the Forum Rules?

"An extension of this is discussion of alterations to the mains wiring, sockets, plugs, fuses and mains leads. Some exchanges about this can take place in the Padded Cell but will be subject to moderation on a precautionary basis. Excessive/obsessive discussion will also be closed or removed."