Really appreciate this post though - as you have made it much easier for me.

I have a setup with 5 Stereo mixers (2 Behringer UCA222s and 3 Alesis interfaces). The Behringer is used as a Master, the other 4 (4/5ths) interfaces are used by team members and to record tracks for use by the live show.

We use the Behringer to control a 1x10 D&B speaker 66cf4387b8 amorquad