Ohmless Pedals Boar FuzzBoar transforms your clean tone and covers a great range from heavy distortion to beautiful fuzz fatness. You can set your desired operating point with the Bias knob and give your sound a final touch with the Tone and Sustain controls. An internal trimpot provides greater versatility, granting the ability to set the maximum gain and sustain to the desired amount. Controls VolumeControls the overall volume SustainSets the amount of sustain BiasChanges