The Eventide MODFACTOR Digital Modulation Effects Pedal, 10 Stereo or Mono Studio quality modulation effects, Ideal for Guitar or Studio. Eventides 10 best modulation effects of the last 35 years. The Eventide ModFactor is loaded with very high, studio quality Eventide modulation effects. The Modfactor is small enough to join a pedalboard or a gigbag, or form an important studio modulation FX option. For more than three decades, the top guitarists have chosen Eventide as their effects processors of choice: Jimmy Page, Frank Zappa, Brian May, Eddie, Van Halen, Steve Vai, Robert Fripp, John Petrucci, and Adrian Belew, to name a few. Now, for the first time, these effects are portable AND affordable. Mod factor contains 10 stereo or mono effects - Phaser, Flanger, Chorus, PolyMod, TremoloPan, Undulator, Vibrato, Q-Wah, ModFilter and RingMod. 10 control knobs provide instant real-time control of all the most commonly adjusted parameters, and optional controls via MIDI or expression pedal keep the full power of the Modfactor within easy reach. The Eventide ModFactor has a sleek, rugged design that provides an uncompromised level of functionality that is consistent with all of Eventide’s best-selling products.