The Overunder is a pedal based on the Zvex Fuzz Factory 8. The circuit inside the pedal has been enhanced to provide a wider range of tones. The 8 controls on the pedal are Vol, Comp, Drive, Stab, Gate, Tone, Blend, and Pre. These controls interact with each other to offer a variety of sounds. The Vol control adjusts the volume, Comp controls the compression, Drive adjusts the amount of drive, Stab controls the stability of the circuit, and Gate controls the gating effect. The additional controls include Tone, which is a simple tone control, Blend which blends between two input caps for a thicker sound, and Pre which is an input saturation control. All 8 controls work together to provide a versatile range of effects.

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