Hosa GXR-134 is an adaptor designed to adapt an XLR3M to a phono input. XLR pin 3 is grounded resulting in an unbalanced signal.
XLR Female to RCA Male
XLR PIN-2 goes to the center contact of the RCA, this carries the signal.XLR PINs-1 and 3 are tied together and carry the Ground via the Chassis. This connects to the Surround of the RCA.
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