FUZZ: Typical setting: All the way up, or backed off a little. You can dial in a massive range of great sounds just by playing around with the GRIT control, the FUZZ control, and your guitar’s volume and tone controls. A 1K reverse-log taper pot is used for spreading the range out evenly.
GRIT: Typical setting: 12:00. Grit allows you to fine-tune the bias of the transistors. Recreate the sound of miss-matched transistors or a dying battery. Tones range from smooth to gated when fully clockwise.
VOLUME: Typical setting: Adjust to match guitar volume or set to maximum for overdriving amp. Increasing the volume also increases the brightness of the Fuzz.
POWER: On/off switch for saving battery life when the pedal is not in use. This is a convenience feature for those who use a pedal board and prefer to use a battery. There is no need to unplug the input jack when not in use. The Power On/Off switch shuts off external power as well. Power is automatically disconnected when there is nothing plugged into the input jack.
INPUT PAD: This switch adds some resistance at the input of the fuzz. It's similar to turning your guitar volume knob down a small amount. This decreases the loading at the input, resulting in a clearer sound from the guitar. Input pad can also be useful for interfacing the fuzz circuit with various other pedals.
EXTERNAL POWER: CC Hybrid2 requires isolated power, meaning the ground and voltage connections cannot be shared with any other pedals (daisy chain). Most pedal board power supplies and wall-wart power adaptors have isolated grounds, but check owner's manuals to be sure.