I don't really have any loud enough amps. Would it work if I brought my desktop to the rehearsal space, and used the two outputs on my Fast Track Pro to be hooked up with the monitors, and just use amp sims? Could I also possibly have my guitar in one insert, and a mic in the other in the interface and just mix a decent sound through the computer and to the two PA monitors? I have never done anything outside recording in my room so excuse me if its a shitty question