I´ve a handmade Board where I have:
-2 wireless (1 for acustic guitar and another for electric guitar)
-1 in ear system
-1 kemper
-1 samson powerbrite
-1 behringer xenyx 502 where I connect my kemper and foh monitor signal and i can mix everything to mi taste in my in-ears.
All that connected. When i gig I only have to conect 1 power cable to my samson powerbrite, my main out to PA and my PA monitor signal (drums, voices, etc etc) to my behringer xenyx 502.