The AMP1 is MIDI-capable and can be controlled by external MIDI devices. To do this, you need our MIDI1 adapter, which allows you to connect a MIDI controller to the AMP1. The AMP1 can handle program change commands as well as control change commands from an external MIDI controller. The controller must be connected to the AMP1 via the MIDI1 adapter. The MIDI (foot) controller sends a program change number, which can be assigned to a specific effect on the midi effect device, while AMP1 switches to a desired setting simultaneously by receiving midi data. Use MIDI Channel1 and send a PC message from your controller to match your controller patch with the setting of AMP1 using MIDI Learn on AMP1.