Boss Katana-50 MkII 1 x 12-inch 50-watt Combo Amp | Sweetwater
GitHub - SteveObert/KatanaUSB_Midi_controller: This is a Teensy based USB MIDI foot controller for Katana amps
Boss GA-FC – Thomann Ireland
Boss Katana and expression pedal
BOSS - KATANA-50 MkII | Guitar Amplifier
BOSS Katana Head MKII Guitar Modelling Amplifier
Boss Katana-AIR « Guitar Amp | Musik Produktiv
Searching for a Single Button / Expression Pedal Switch : r/BossKatana
Get The Most Out of BOSS Katana Amps | Electric Violin Shop
BOSS - KATANA-50 MkII | Guitar Amplifier
BOSS Katana 50 MKII Guitar Modelling Combo
Boss Katana Amps - FAQ
DISC Boss Katana Artist Guitar Amplifier w/ Cover & Footswitch at Gear4music
Katana board: Phase 2 : r/BossKatana
BOSS - GA-FC | GA Foot Controller
Boss Katana 100 MKII Guitar Amplifier - soundshop.ie
Boss Katana V3 Assign Options in Tone Studio: Expression Pedal set-up - YouTube | Katana, Boss, Expressions
Boss Katana Setup Guide | Sweetwater
Boss EV-30 – Thomann Ireland
BOSS - GA-FC | GA Foot Controller
Boss Katana 50 MKII
Haven't seen a lot of examples of boards that implement the GA-FC, so here's the one I just put together! (Also posted in r/guitarpedals) : r/ BossKatana