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Connector Encyclopedia · Audio

XLR · 3-pin

Balanced audio. Pin 1 shield, 2 hot, 3 cold.

Pin explorer

Schematic. Read the molded numbers on the real part.
123
PinFunction
1Shield / chassis reference
2Hot (+), non-inverting
3Cold (−), inverting
Printable bench card

XLR · 3-pin

123
Balanced audio (standard)
1Shield / chassis reference
2Hot (+), non-inverting
3Cold (−), 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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