The XLR Combo Jack accepts both XLR 3-pin balanced audio and 6.35mm TRS/TS unbalanced jacks in the same panel-mount opening. Standard on audio interfaces, mixers, and preamps.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | GND/Sleeve | Ground and XLR pin 1 | GND |
| 2 | HOT/Tip | XLR pin 2 hot or TRS tip | ADC |
| 3 | COLD/Ring | XLR pin 3 cold or TRS ring | ADC |