The 4.4mm Pentaconn is a 5-pole balanced stereo headphone connector defined by JEITA RC-8141C. Used on Sony Walkman, iBasso, Astell&Kern, and Fiio high-end audio players for fully balanced output.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Left+ | Left channel positive | ADC |
| 2 | Left- | Left channel negative return | ADC |
| 3 | Right+ | Right channel positive | ADC |
| 4 | Right- | Right channel negative return | ADC |
| 5 | GND | Optional ground / chassis | GND |
The 4.4mm Pentaconn is a 5-pole balanced stereo headphone connector defined by JEITA RC-8141C. Used on Sony Walkman, iBasso, Astell&Kern, and Fiio high-end audio players for fully balanced output.