Profile photo of Stix

Aren’t you already using the A port to connect the surface to the mix rack? My understanding is that the ACE A network is handling mainly control data and the local audio, pafl etc that goes to/from the surface. Thats only 16 channels from surface inputs, 12 channels to the surface outputs, plus PAFL mix. I think you need the port B expansion card to add the iDR32 for a totally independent monitor mix. Correct me if I’m wrong someone.