I hope I've understood the question...we have 16 channels (vox x 4, bass, guitar, stereo keys, and the rest is drums. Our mics/instruments go into the 2 x Art S8 splitters, and I have a 16 channel loom that goes into the house PA. We only play 2 venues where we do this, the rest of the time I don't bring the loom and we just use our PA (X18, tucked into the rack) for FOH. Whilst I built it, and it works for us, I don't understand much of what goes on FoH.