You can monitor with either the headphone output or the CR (Control Room) outputs and they can be different mixes from, and are not affected by, the main output settings. I did not look at the manual but it appears you do have an AUX send that is labeled FX send and the mix would be controlled by each channels Fx knob. The specs list on the Sweetwater site shows this is a post send and return with TRS I/O but it has send only in parentheses which means a return would have to come back to the mixer on a unused channel.

Last edited by Charlie Fogle; 09/11/18 09:40 AM.

BIAB Ultra Pak+ 2024:RB 2024, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.