Eventide Harmonizer Effects Processor 90 of Eventide's best effects; dual processing engine architecture 390 stunning presets for stage and studio, including up to 8-voices of diatonic pitch shifting 1/4" instrument or XLR balanced inputs and outputs AES/EBU, S/PDIF, ADAT digital I/O Expressive effects: Continuous control of any and all parameters through MIDI, external footswitch, or Expression pedal input