Bus Masters are controlled from the 8 knobs and function select switches in the middle of the console. The knobset can be switched between Group, Mix and Aux Bus Masters using the function select keys at the bottom of the knobset. The page key allows the 8 knobs to switch between sets of 8 controls (1-8, 9-16 etc.)

Each master has a gain trim and On/Off switch plus an insert. For a Mix Section this will control the gain of all the buses within the section. For the Mix Masters the upper switch next to each knob switches the knobs to allow On/Off and gain trim for individual buses within each Section. The user can lock the bus masters so the point of reference is always the same.

Master Fader
The Master Fader in the middle of the center section controls all Mix Section output levels. It can also be locked out.