Discrete F.E.T Hi-Gain Distortion and Overdrive Booster IN ONE BOX. You could think of them as 2 separate pedals..or think of them as stages to be linked together for endless combinations. Hi-Gain side has Volume, Distortion knobs, Bass, Mid, and Highs minipots. Booster Side has Volume, Overdrive knobs, Bass and Highs minipots. (these new hi-Q sealed minipots don't break BTW)
GT500 page at Fulltone 's website...