REFERENCE

Audio Connector Pinouts

Pin-by-pin signal assignments for every connector in the parameter database.

PINOUT

0.78 mm 2-Pin — Universal IEM Connector

2-pole 2-pin · 0.78mm · single-channel signal + ground
PINOUT

2.5 mm TRRS Balanced (Legacy Portable Balanced)

4-pole TRRS · 2.5mm · balanced
PINOUT

3.5 mm TRRS — Headset Standard (Audio + Mic)

4-pole TRRS · 3.5mm · single-ended-stereo + microphone
PINOUT

3.5 mm TRS (1/8″ Stereo) Headphone Jack

3-pole TRS · 3.5mm · single-ended-stereo
PINOUT

4-Pin XLR Balanced — Desktop Headphone Standard

4-pole XLR4 · 19mm · balanced-stereo
PINOUT

4.4 mm Pentaconn Balanced Connector

5-pole TRRRS · 4.4mm · balanced
PINOUT

6.35 mm TRS (1/4″ Phone Jack)

3-pole TRS · 6.35mm · single-ended-stereo
PINOUT

MMCX — Micro-Miniature Coaxial IEM Connector

2-pole coax · 3.5mm · single-channel signal + ground
PINOUT

Pentaconn Ear — Premium IEM Connector

2-pole 2-pin · 2.5mm · single-channel signal + ground