H910 Harmonizer/H910 Dual


Stretch the fabric of time

True analog modeling of the original H910 Harmonizer (world's first digital effects processor). Spread guitars, fatten snares, and apply subtle organic de-tuning to synths. Add harmonies or slap-back delays to vocals. Create unheard mechanical sounds, drone effects, or robot language using self-oscillation, delay, and anti-feedback. Includes the H910 Dual plugin, which recreates the popular technique of running two H910 units in parallel to create lush doubling and other interesting effects.

The endless combinations of pitch shifting, modulation, and delay in the H910 Harmonizer have made its way onto countless ground-breaking work by artists from AC/DC to David Bowie to Frank Zappa. Once you have the H910 in your arsenal, you’ll wonder how you ever lived without it. The H910 was inducted into the NAMM Audio Hall of Fame in 2007.


  • True analog modeling of highly nonlinear electronics for faithful reproduction of original juicyness and grit
  • Perform perfect pitch changes—control them manually, via MIDI or with Anti-Feedback
  • Anti-Feedback modulates the pitch around unity for a subtle or wild effect
  • Glitching of original hardware present to create unpredictable sounds as it alters pitch
  • Modify pitch by musical intervals to harmonize vocals or solo instruments
  • Delay rhythms and melodies to create everything from slap-back echoes to crystalizing feedback chaos
  • Create colorful, unique sound effects and drones through self-oscillation
  • Individually control delay outputs and dry/wet mix

System requirements

Windows Window 7 and later
Mac Mac OS 10.7.x and later
Pro Tools Pro Tools | First, Pro Tools 10.x and later
Max Sample Rate 192 kHz
Copy Protection Requires iLok


Pitch Shift
AAX Native 

This product is tested by the Seller for support of current versions of the indicated Avid products and operating systems. For compatibility questions related to older systems, please contact the Seller.

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