Guys, I played this amp at the show today.....it freakin' RIPS!! It sounds absolutely huge. In front it has the Hi Gain and Lo Gain Jose inputs. And on the back there is a 3 position Gain Style knob, which basically changes the gain/diodes/whatever. Between the two inputs and the Gain knob on the back, this thing literally covers all the ground of a cranked plexi, to a huge, ready-to-explode plexi, to modded 800, to absolute brutal. People who know me, know I'm not even a high-gain type guy, but this thing has me drooling because not only can it do so many things, each setting sounds killer. Just plain awesome.