The GA-FC EX provides expanded foot control functionality for select BOSS amplifier models. It maintains the simple setup and intuitive workflow of the standard GA-FC while offering additional functions for greater performance flexibility.

Features:

• Expanded GA-FC with enhanced functionality for select BOSS amplifiers
• Rugged metal chassis and six heavy-duty footswitches 
• Control channel selection, effect on/off, and more
• Two-color LEDs for easy view of control status
• Two dedicated expression pedal jacks
• Additional control jack with three-way mode selector
• EXPAND mode for adding another GA-FC EX or a GA-FC
• FOOT Control 2 mode for operating two amps at once
• EXP Pedal 3 mode for a third expression pedal
• Works as a standard GA-FC controller with other amplifier models
• Connects with a single 1/4-inch TRS cable (included)—no power required
• The following BOSS amplifiers support all GA-FC EX features: Katana-50 MkII EX, Katana-Artist MkII Head, Katana-Artist MkII, Katana-Head MkII, Katana-100 MkII, Katana-100/212 MkII
• Compatible with BOSS and Roland products, but only standard GA-FC control functions are available: BOSS Katana-100, Katana-100/212, Katana-Head and Katana-Artist, BOSS Nextone Special, Nextone Artist, and Nextone Stage, BOSS Waza Tube Amp Expander, BOSS Katana-210 Bass and Katana-110 Bass, BOSS Acoustic Singer Pro and Acoustic Singer Live, Roland Blues Cube Artist, Blues Cube Artist 212, and Blues Cube Tour