I have a live gig coming up as a solo guitarist/singer. Nobody wants to front money for a PA rental. I DO have an Audiobox 22vsl and a Peavey Classic 50 with 4X10'' speakers. I was thinking to go Mic + Guitar into Audiobox, and Main Out to Peavey Amp? I would lower the input gains of course, but is there anything wrong with this as a concept in general that I am missing? I understand it's a doubly amplified signal at this point, I just have no other gear with me at the moment. Thoughts much appreciated.