D - None of the above.

Posted by KT88 (D) on May 16, 2007 at 08:12:05

In Reply to: balanced tonearm cable - shielding ? posted by iandickson on May 16, 2007 at 01:50:16:

You should connect the shield to the XLR connector end and let it float over the DIN end. Neutrik XLR connectors have a forth connector for shield use. That keeps the audio ground separate from the shield/chassis ground at multiple points. Certainly the shield will be connected to a common ground with the audio at some point. It allows the shield to be connected to the chassis of the preamp and only joined at the audio ground point chosen by the preamps designer. I think that it's a good idea to let the guy that laid out the phono circuit choose the ground path rather than the guy asking questions about connecting it ;-).

Mark is correct. You never want to connect the inverted signal to ground. The only exception that I see here to connecting the shield to a fourth, isolated shield pin is when you have a cable that has only three wires and so the shield is also the ground. Then Pin 1 serves ground/shield duty for that cable assembly.
-Bill

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Follow Ups Full Thread

Topic - balanced tonearm cable - shielding ? - iandickson 01:50:16 05/16/07 (5)

Re: balanced tonearm cable - shielding ? - Paul-D 12:15:48 05/17/07 (0)

D - None of the above. - KT88 08:12:05 05/16/07 (0)

Re: balanced tonearm cable - shielding ? - wires 04:12:21 05/16/07 (0)

Not to the inverting negative - Mark Kelly 02:06:45 05/16/07 (1)

Re: Not to the inverting negative - iandickson 04:58:07 05/16/07 (0)

Follow Ups

D - None of the above. - KT88 08:12:05 05/16/07 (0)

D - None of the above.

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