WBCN's Final Hours

Garrett Wollman wollman@bimajority.org
Fri Aug 14 01:15:33 EDT 2009

<<On Fri, 14 Aug 2009 00:56:41 -0400 (GMT-04:00), Eli Polonsky <elipolo@earthlink.net> said:

> Yes, but since there weren't many albums recorded in
> discrete true quadrophonic, they used a system which
> "synthesized" quadrophonic by sending a different EQ
> between the front and rear speakers, the rears being
> fed by material out-of-phase to the front, causing 
> some phase cancellation when listening on a mono
> radio.

There were also various multiplex quad stereo subcarrier proposals,
none of which had any sort of widespread adoption.  (It was the AM
Stereo of the 1970s -- the market died before the FCC adopted a


More information about the Boston-Radio-Interest mailing list