Electro Harmonix Germanium 4 Big Muff Pi

Individual overdrive and distortion with the ability to stack them together. 4 individual Germanium Transistors, Each mode of drive mode uses its own 2 germanium stack. Overdrive and distortion can be stacked utilizing four germanium transistors. Bias and tone control define the tonality in overdrive. Volts and Bias define the way the distortion will react. Starving battery sound through volts control adds character