JHS Superbolt V2 - Valco Supro Amp TonesThe JHS SuperBolt overdrive pedal, at its heart, is a discreet circuit designed to emulate the tone and character of the 1960s era Supro amps. From its touch sensitivity to the way the pedal sags with tube rectifier color at higher gain settings, the SuperBolt will give any guitar rig a versatile and useful new set of tones, reminiscent of some of the greatest sounds ever recorded. With three simple knob controls named Volume, Tone, Drive and a Gain