Diki-the only way I use the 4 outs is into different channels into different tracks at the studio. I have settings for each out set in the memory of the recording machine, and these would be different than the settings for live use. Keep everything flat out of the board and adjust externally. Don't think there are separate internal adjustments, but never looked for them, and the book is way to faded and spilled on (14 years) to go back and look.

R.