Great unit, well built and rugged. I have noticed that when it is pushed hard it doesn't clip, it exhibits a resonance ringing kind of sound. This happened first when I was DI'ing at speaker level with the pad in (as advertised possible) making me worry about my amp and again when I drove it hard with a pedal without the pad, its odd and when not driven it in no way sounds faulty, it could be to do with the power supply I'm using possibly though so im not holding it against the unit in the review. Overall a good unit.