thank you very much for your reply, it helped me a lot. Sorry for the bad explanation of my configuration, I summarize it briefly. I have
3 sub woofers (2 svs pb1000 (one wirless), one svs pb2000), I connect minidsp input # 1 to my avr sub out # 1, and 3 out analog from minidsp to # 1 pb2000, #...