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From: ccrse@ucdavis.UUCP (Steve Ehrhardt)
Newsgroups: net.audio
Subject: cables and ground loops
Message-ID: <379@ucdavis.UUCP>
Date: Mon, 22-Jul-85 14:49:06 EDT
Article-I.D.: ucdavis.379
Posted: Mon Jul 22 14:49:06 1985
Date-Received: Thu, 25-Jul-85 02:17:22 EDT
Distribution: net
Organization: University of California, Davis
Lines: 25

In a previous article, someone indicated that the arrows on some high-end
interconnect cables may be related to a wiring scheme designed to reduce
problems with ground loops.  Can anyone tell me for certain if this is
true?  If it is true, how exactly are they wired to achieve this goal?

My reason for asking is that I have a Hafler 200 amp with what I *believe*
to be a ground loop problem.  The amp is completely quiet as long as only
one input channel is connected to a source, but starts to hum slightly
as soon as both are connected to the same source.  This seems to happen
regardless of the source (or cables) used.

This problem has been getting on my nerves for some time, and I would
appreciate any advice on how to solve it.  If the aforementioned cable
scheme exists, it might be an ideal (cheap) solution, but I'm open to
other suggestions.







appreciate any advice on how to solve it.  (Please don't recommend that
I take it to a shop to be repaired - if I could afford that, I wouldn't
be asking this now!)  If the aforementioned cable scheme exists, that