Drive: Controls the level of grit and/or overdrive for the OD side and contributes to the grit/overdrive when cascaded with the boost side.
Level: Controls the volume for the OD side and contributes to the volume control when cascaded with the boost side.
Bass: Controls the bass and/or fatness of the OD side or contributes to the bass and/or fatness when cascaded with the boost side.
Tone: Controls the brightness and/or presence of the OD side or contributes to the
brightness and/or presence when cascaded with the boost side.
P. Amp Switch: Engages the “power amp” only or cascades it with the OD side.
P. Amp Knob: Controls the volume of the boost or contributes to the output when cascaded with the OD side.