> Hate to burst your bubble, Robert, but an audio signal is alternating
> current.  There is no positive or negative about it, it cycles equally
> between both polls so that if you hook it up in reverse you end up with
> exactly the same signal, only offset by 180 degrees.

However, some audiophiles do claim that inverted "absolute polarity" is
audible, and some high-end components have a polarity reversal switch for
that reason.  (On the other hand, even if you could detect a difference
under better circumstances, it would scarcely be audible in a Vanagon while
driving down the road.)

- Ron Salmon
  The Bus Depot, Inc.
  (215) 234-VWVW
  www.busdepot.com

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