| Audio signals | Control signals | Description |
|---|
| Single input single output mono-mono | n/a | Mono output equals the mono input multiplied by the gain |
| Single input single output mono-stereo | n/a | Separate gains are applied to the mono input channel, then sent to the stereo output |
| Single input single output stereo-mono | n/a | Separate gains are applied to each input channel, then averaged to give the mono output |
| Single input single output stereo-stereo | n/a | Separate gains are applied to each input channel, then sent to the stereo output |
