The Source Audio MIDI Adapter provides full MIDI functionality to all single-footswitch One Series pedals including the C4 Synth, Aftershock Bass Distortion, Atlas Compressor, and Spectrum Intelligent Filter. The MIDI Adaptor is a compact, bus-powered, intelligent adapter compatible with any standard MIDI Controller with a 5-pin MIDI DIN output. Use MIDI PC messages to switch presets, MIDI CC messages to change parameter settings or move parameters with an expression pedal, and MIDI clock messages to set LFO modulation and sequencer rates.