I have an M-Audio project mix but i need more I/O. The monitoring features in the PreSonus Firestudio look fantastic for recording bands (9 separate stereo mixes possible!). This really appeals. Will I be able to use the inputs from my Project Mix and from a Firestudio at the same time?

My other option is buying mic preamps and connecting them to my Project mix via lightpipe. But then i struggle with enough outputs to provide separate mixes for band members.

Thanks for any advice!