Hi, I play in a semi pro covers band and have been messing around with the demo of guitar rig 4. I have to say I love this app and intend on purchasing it with the rig kontrol foot pedal. I have set up amps to match the exact sounds of the artists we cover and am interested in using this emulation software during a show instead of my amp and pedal board. Can somebody tell me, would this be possible? I have a 2x12" cab that I'd like to use. Would I need a preamp or is everything good to go? Thanks in advance.