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Original Message
RE: The reason Grado rejected that is because
Posted by Lee of Omaha on March 15, 2017 at 10:20:12:
The problem is the shield. Only shielding ONE lead makes the noise (hum) introduced into the two leads inherently unbalanced and NOT common mode, so it can't be cancelled in the differential amp. By using XLR, you're right, problem prevented, but hardly any turntables use XLRs (which I think should be universal in audio.)