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Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!zehntel!hplabs!hao!seismo!brl-tgr!ron
From: ron@brl-tgr.ARPA (Ron Natalie )
Newsgroups: net.audio
Subject: Re: Re: Speaker Wires in Walls
Message-ID: <3742@brl-tgr.ARPA>
Date: Thu, 2-Aug-84 10:17:50 EDT
Article-I.D.: brl-tgr.3742
Posted: Thu Aug  2 10:17:50 1984
Date-Received: Sat, 4-Aug-84 02:34:10 EDT
References: <69@whuxl.UUCP>, <573@hound.UUCP> <3662@brl-tgr.ARPA> <226@we53.UUCP>
Organization: Ballistics Research Lab
Lines: 11

Sorry, but shielding speaker cables is not to keep the audio signal in
it's to keep other shit out.  This is preferable to the kludge of putting
a low pass filter on the speaker terminals to cut off RF since this doesn't
always work, the RF may have been rectified before the point where the
capacitor is attached.  The best way to remove RFI is not to let it in 
to begin with.

-Ron

P.S.  Believe me, I know.  I used to live two blocks away from an AM
radio station.