product types: 

  • chorus effects
  • delay effects
  • modulation effects
  • multieffects
  • octave and pitch effects
  • reverb effects
  • loop and sampler effects


Eventide was founded in 1970 by Steve Katz, Richard Factor and Orville Greene. Their first product was a tape search unit for the Ampex MM1000 multitrack recorder. They then developed a digital delay line with possibly the first use of RAM in an audio product - with a optional pitch changer. Their first widespread success was the H910 Harmonizer - developed in 1973. Their family of Harmonizers became the industry standard. Eventually they squeezed their legendary effects into the effects pedal format including the TimeFactor, PitchFactor, ModFactor and Space units. In 2015 they launched the Eventide H9 multieffects unit, which combined their delay, pitch, modulation, and reverb algorithms into a single enclosure with new saturation effects.

Source: Eventide website (13 February 2022)


Eventide Inc.
1 Alsan Way
07643 Little Ferry , NJ
United States
New Jersey US