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Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ.

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Re: Denon DL102 Mono Cartridge, What Am I Missing When Playing Stereo Records?

Posted by John Diamantis on March 12, 2003 at 14:30:57:
The stereo signal is created by recording the sum (mono signal or L + R) in the horizontal plane, and the difference (L - R) in the verticle plane. Normal stereo signals are a combination of both, roughly approximating a 45 degree pitch. The coils within the cartridge are set up to "decode" this matrix signal into left and right channels.
If your cartridge responds to only the horizontal modulations, you will reproduce the sum of the L + R, and therefor reproduce all of the information, UNLESS it was recorded purely as the difference, in which case it will cancel out (L - R). Except for extreme effects, this conditiion does not occur in normal recordings.

John