Grizzly Bass - Overdrive Distortion Tone Pedal Overdrive - Saturated tube-like wave-shaping. Distortion - Heavy, hard-edged with all the bass frequencies and plenty of sustain. Mid-Scoop and Hi-Cut - Tone shaping tools.. Master Gain - From off to +12dB of clean boost. Can be used as a Preamp / DI to plug directly into the line-input of any sound system