DB25 25-pin D-sub connectors are used for 8-channel balanced analog audio multicore in professional recording studios. Two wiring standards exist: Tascam and Yamaha/BNCE — incompatible with each other.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Ch1 Hot | Channel 1 positive (Tascam) | ADC |
| 2 | Ch1 Cold | Channel 1 negative | ADC |
| 3 | Ch2 Hot | Channel 2 positive | ADC |
| 4 | Ch2 Cold | Channel 2 negative | ADC |
| 5 | Ch3 Hot | Channel 3 positive | ADC |
| 6 | Ch3 Cold | Channel 3 negative | ADC |
| 7 | Ch4 Hot | Channel 4 positive | ADC |
| 8 | Ch4 Cold | Channel 4 negative | ADC |
| 9 | Ch5 Hot | Channel 5 positive | ADC |
| 10 | Ch5 Cold | Channel 5 negative | ADC |
| 11 | Ch6 Hot | Channel 6 positive | ADC |
| 12 | Ch6 Cold | Channel 6 negative | ADC |
| 13 | Ch7 Hot | Channel 7 positive | ADC |
| 14 | Ch7 Cold | Channel 7 negative | ADC |
| 15 | Ch8 Hot | Channel 8 positive | ADC |
| 16 | Ch8 Cold | Channel 8 negative | ADC |
| 17 | GND | Ground | GND |
| 18 | GND | Ground | GND |
| 19 | GND | Ground | GND |
| 20 | GND | Ground | GND |
| 21 | GND | Ground | GND |
| 22 | GND | Ground | GND |
| 23 | GND | Ground | GND |
| 24 | GND | Ground | GND |
| 25 | GND | Ground | GND |