How to wire an XLR, Jack or Phono Plug

Balanced to Unbalanced Connectors

If the output is unbalanced connect the negative to the ground when going to a balanced connector. However, if the output is balanced do not connect these two when going into an unbalanced connector.

XLR Connector

XLR Pin out Pin 1 = GroundPin 2 = Positive
Pin 3 = Negative

Balanced Jack Connector

Balanced jack Sleeve = GroundTip = Positive

Ring = Negative

Unbalanced Jack Connector

Jack Plug Tip = PositiveSleeve = Ground


Phono Connector

rca Tip = PositiveSleeve = Ground