Boss GA-FC EX – Expanded Floor Control for Select BOSS Amps  Step into total command of your tone with the GA-FC EX, Boss’s enhanced foot controller designed for seamless integration with Katana Gen 3, MkII, and other select BOSS and Roland amplifiers. With six heavy-duty footswitches, dual expression pedal jacks, and a three-way mode selector, this rugged unit gives you real-time control over channels, effects, and amp functions—all without lifting your hands from your instrument.
Whether you're switching between presets, layering effects, or operating two amps simultaneously, the GA-FC EX adapts to your rig with EXPAND mode, FOOT CONTROL 2 mode, and support for a third expression pedal. Two-color LEDs provide instant visual feedback, and the all-metal chassis is built to withstand the demands of the stage.
Key Features:

• Six footswitches for channel and effect control
• Two expression pedal jacks + one additional control jack
• EXPAND mode for daisy-chaining a second GA-FC or GA-FC EX
• FOOT CONTROL 2 mode for dual-amp operation
• Compatible with Katana Gen 3 (except Katana-50), MkII, and other BOSS/Roland amps
• No external power required—connects via 1/4" TRS cable
• Rugged metal construction with two-color status LEDs