Although the Pit Viper has a raw look, the module was built with much love for detail. The OP amp (TLC2272) can be exchanged for other models. Unused soldering points on the circuit board allow musicians who are dissatisfied with the rather erratic behavior of the viper to replace the hand-rolled optocouplers with precision components. Furthermore, there is a trim potentiometer on the circuit board, which can be used to adjust the gain

Toxicity: Gain potentiometer – Please turn up for heavy distortion.

Hiss: Tone knob – Turn clockwise to cut the treble.

Venom: Volume potentiometer

Fear: Three-stage soft clipping switch – Activates normal soft clipping or a more tube-like version with less treble.

Malice: Three-stage hard clipping switch – Activates beefy hard clipping or a spongier version with less treble.

Blend: Dry / Wet potentiometer

Bite: CV input plus attenuator to cut the high frequency range. Without a cable plugged in, the knob can be used for adjusting the treble manually.

Saturation: CV input plus attenuator and on/off switch to influence gain and saturation.