XLR to 1/4" TRS Connector (wired for balanced mono)

The usual way to connect a 3-pin XLR to a 1/4" TRS (AKA stereo jack plug) is to use the following pin allocation:

This wiring configuration gives you a balanced mono audio cable.


Audio Cables and Connections
Audio Cables XLR to 1/4" mono jack      XLR to RCA Stereo jack to 2 x RCA
Audio Connectors     XLR to stereo jack XLR to 2 x RCA