We just got a SoundCraft Si Compact 32, but we can't figure out how to use the matrix. In the world of analog mixers, it's easy. You just choose what you want to mix in, and you're good to go.
Our SoundCraft mixer has a MTX button that makes the faders control the master fader of the four matrices: MTX 1, MTX 2, MTX 3 and MTX 4. If you press MTX 1, you get to change 14 of the faders. (We have 14 buses (aux outputs) too, if there is any relation there?) If you press it again, you get to change the three last faders.
Does anyone know how this works?