Instruction: If you hope to get high gain amplifier distortion sound when you just own a low watt clean amplifier, this tiny box can satisfy you instantly. Because the good adaptability, it can work with most of amplifier in the market. It provides you two kinds of clipping character by CLIP switch, at the down position ,you can get a marshall style distortion sound,and when you pull the swith up,the sound would be more like a tube distortion amplifier.