There are 4 input faders that let you set up 2 mixes, one for A and one for B. When you press the footswitch, you toggle these mixes which are sent to the outputs. How these levels are mixed and routed is ultimately determined by the A/B Mode switch that sits directly above the mix faders:

• Tip -> A: this sets the level of the incoming Tip signal when the footswitch is in the A position
• Tip -> B: this sets the level of the incoming Tip signal when the footswitch is in the B position
• Ring -> A: this sets the level of the incoming Ring signal when the footswitch is in the A position
• Ring -> B: this sets the level of the incoming Ring signal when the footswitch is in the B position

Remember, for any AFX pedal whose Audio Path switch is set to Tip, that pedal’s effect will show up on the left two faders labeled Tip. Conversely, any AFX pedal whose Audio Path switch is set to Ring, that pedal’s audio will show up on the right two faders labeled Ring.