Roland Boss GA-FC Foot ControllerThe Roland Boss GA FC Foot Controller expands your amp control options while keeping your hands free to keep playing. Now you are able to route two different effects loops, change settings for boost, reverb, and delay, and even swiftly switch between four amp channels, all from the comfort of your own feet. The GA FC can expand your Boss or Roland amp setup even further with up to two optional expression pedals for even deeper control of your amp and