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

Here's the trouble.....

Using a Y-connecter sums the channels to give a nominally L + R signal. This is the horizontal information on the record. The vertical information is L - R.

The problem is that cartridges have crosstalk, both from left to right channels and from L + R to L - R (the same thing if you think about the math of it).

By using a Y- connecter, you get the L + R signal plus some of the L - R signal via crosstalk.

A true mono cartridge never picks up any L - R information in the first place, so there is no way it can contaminate the L + R signal.

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