F1 & F2 Switches - Footswitch & Serial/Parallel Modes

F1 Switch - Working with a Footswitch

BIAS Head and BIAS Rack are compatible with BIAS Footswitch and most one-button latch-type footswitches.

Hardware Connection

• BIAS Head: Connect your footswitch to FOOTSWITCH jack 2 on the back using a TRS cable.
• BIAS Rack: Connect your footswitch to EXP. PEDAL jack 2 on the back using a TRS cable.

Calibrating Your Footswitch

Step 1: Enter Calibration Mode

Hold the F1 switch (calibration switch) on the rear of the unit for 3 seconds until the LED lights up Blue.

Step 2: Record OFF Status

Step on your footswitch to record the OFF status (minimal value).

Step 3: Lock OFF Status

Flick the F1 switch to lock in the OFF status. The LED will turn Red.

Step 4: Record ON Status

Step on your footswitch again to record the ON status (maximal value).

Step 5: Complete Calibration

Flick the F1 switch to lock in the ON status. The LED will flash a few times to indicate successful calibration.

Assigning Presets to Footswitch

Once calibrated, you can assign specific presets to your footswitch for quick switching between two tones.

Step 1: Choose Preset

Select the preset you'd like to use with your footswitch.

Step 2: Step on Footswitch

Step on the footswitch to set that tone to the footswitch.

Step 3: Save Assignment

Flick the F1 switch on the rear of the unit. The current preset will be saved with the footswitch value.

Step 4: Assign Second Preset

Repeat this process with another tone to switch between those two tones using your footswitch.

F2 Switch - Serial & Parallel Modes

The F2 switch toggles between Serial Mode and Parallel Mode, allowing you to configure different signal routing options for live performance or studio recording.

Understanding Serial & Parallel Modes

Many artists prefer to run a wet and dry signal when playing live or in a studio:

• Wet signal: On-stage cabinet or live room output
• Dry signal: Desk-fed output with cabinet simulation (IR)

The F2 switch allows you to quickly toggle between these two modes depending on your setup:

• Blue LED — Parallel Mode
• Red LED — Serial Mode (factory default)

Serial Mode (Red LED)

• Utility switch LED = Red
• CAB SIM LED = Red
• Cannot use Speaker Out and Line Outs at the same time
• The CAB SIM switch affects all audio output jacks, including the Powered 4-16 Ohm Output
• The Send/Return works properly with all audio output jacks

BIAS Head Serial Mode:

Parallel Mode (Blue LED)

• Utility switch LED = Blue
• CAB SIM LED = Blue
• Can use Speaker Out and Line Outs at the same time
• The CAB SIM switch does not affect the 4-16 Ohm Speaker output
• The Send/Return only works with Line Outs under Parallel Mode

BIAS Head Parallel Mode:

See Also

• BIAS Head/Rack User Manual
• What is BIAS Head/Rack?
• Choosing a Preset, Editing & Saving