The essentials to know about the BOSS GA-FC EX foot controller
- More live control for certain BOSS amps, while maintaining immediate usability
- Six robust switches and metal chassis for stress-free stage and rehearsal use
- Bi-color LEDs for clear visualization of command status (effects, presets, channels)
- Extensive connectivity with two dedicated inputs for expression pedals and a CONTROL connector with 3 modes
An evolution of the GA-FC designed for BOSS amplifiers
The GA-FC EX builds on the concept of the standard GA-FC and takes it further: the same simple logic, but more options to control your amp with your foot. It is primarily aimed at guitarists who utilize the presets and built-in effects of compatible amps and want more comprehensive control without multiplying devices.
Who is it for, and in what contexts?
Ideal if you play on a compatible BOSS Katana MkII and frequently switch between sounds: channel changes, preset recalls, effect on/off activation, and real-time control via expression pedal(s). Whether in concert, rehearsal, or studio, it helps you stay focused on playing while maintaining quick and clear management of your setup.
Key features: advanced modes, expression pedals, and expansion
At the heart of the GA-FC EX are six footswitches and a display with bi-color LEDs to instantly track what is active. Two dedicated connectors accommodate your expression pedals, and a CONTROL connector adds versatility with a three-position selector: EXP PEDAL 3 (adds a third expression pedal), FOOT CONTROL 2 (controls two amplifiers), and EXPAND (connects another GA-FC EX or GA-FC to double the controls). Finally, on other compatible amps, it is recognized as a standard GA-FC controller.
Sound
The GA-FC EX does not process the audio signal: no coloration, no compression, no dynamic changes. Its contribution lies elsewhere: making your transitions cleaner and more musical by giving you immediate access to the amp's sounds and functions without letting go of the guitar or breaking the flow of the song.
Technical specifications
Control and switching
- Foot controller for certain BOSS amplifiers
- Six footswitches
- Channel control, effect On/Off, etc.
- Two-color status LEDs to visualize switching
- EXPAND mode: connects another GA-FC EX or GA-FC for more switches
- FOOT CONTROL 2 mode: controls two amplifiers simultaneously
- EXP PEDAL 3 mode: connects a third expression pedal
- Recognized as a standard GA-FC controller on other compatible amp models
Connectivity
- Connection to amp via 6.35mm TRS jack cable (included)
- Two dedicated inputs for expression pedals
- One additional CONTROL input with three-position switch
Construction
Compatibility (all functions)
- Katana-50 MkII EX
- Katana-Artist MkII Head
- Katana-Artist MkII
- Katana-Head MkII
- Katana-100 MkII
- Katana-100/212 MkII
Included accessories
- GA-FC EX
- Controller cable
- User manual
- Power supply: not included (not required)
Power consumption
- Required voltage: not applicable (no external power supply needed)
- Consumption: 0 mA (no dedicated power supply)