MV-8000: How to Adjust the Input Sampling Level
Input sampling level is controlled from two different places. When using the analog inputs, the first 'stage' of gain is controlled by the SENS knobs. To adjust the second stage of gain for an analog input or to control the input level for a digital input, use the following steps;
1) Press MIXER.
2) Press F4 (AUX/Phrs/In)
3) Use FADER number 8 to adjust the volume.