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Connector Encyclopedia · AudioXLR · 3-pin
Balanced audio. Pin 1 shield, 2 hot, 3 cold.
Pin explorer
Schematic. Read the molded numbers on the real part.| Pin | Function |
|---|---|
| 1 | Shield / chassis reference |
| 2 | Hot (+), non-inverting |
| 3 | Cold (−), inverting |
This wiring is a stop-work case at our bench. Shown for recognition only.
Printable bench card
XLR · 3-pin
| Balanced audio (standard) | |
|---|---|
| 1 | Shield / chassis reference |
| 2 | Hot (+), non-inverting |
| 3 | Cold (−), inverting |
Cable: Two-conductor shielded (twisted pair). Star-quad for long runs near dimmers. · Limits: Mic and line level only. Not for speaker level, not for DC power, not DMX (use 5-pin, 120 Ω). · productionbench.com/connectors/xlr3 · Reviewed by Thomas Popp
Sources
- IEC 61076-2-103 (XLR)
- AES14-1992 (r2014) · XLR polarity
Verified against the sources above · Reviewed by Thomas Popp. Found an error? Tell us; corrections are logged on the page.

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