Electro Harmonix Superego Plus Synth Multi FXBuilding on the synthesis platform of the award winning Superego, the Electro Harmonix Superego Plus Synth Engine raises the bar when it comes to creating synth effects, sound layers, glissandos, infinite sustain, and more. Plus, EHX has added a complete effects section featuring 11 effects types, an EXP input for effect parameter control and preset recall, and an EXT jack for a 3 button controller. Effects DETUNE has pitch detune, EXP pedal controls