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H910 Harmonizer

"F@*ks with the Fabric of Time"

The H910 Harmonizer® was the world’s first digital effects processor. With its unique combinations of pitch shifting, modulation and delay, the H910 can be heard on countless ground-breaking works by artists from AC/DC to David Bowie to Frank Zappa. Simply put, nothing sounds quite like it.

A powerful creative tool, the H910 plug-in is a faithful recreation of the original hardware. Use the H910's pitch changing ability to create specific musical intervals and harmonies, spread guitars, fatten snares, apply subtle organic de-tuning to synths or add slap-back delays to vocals. At extreme settings, you can create unheard-of mechanical sounds and drone effects using self-oscillation, delay, and anti-feedback.

Two is Better than One

When you purchase the H910 Harmonizer® plug-in, you also receive Eventide’s exclusive H910 Dual Harmonizer®. This version recreates the popular technique of running two H910 units in parallel to create lush doubling and other interesting effects.

  • H910 Harmonizer® plug-in screen shot
  • H910 Dual Harmonizer® plug-in screen shot

Features

  • Keyboard and MIDI mapping - The original H910 featured a keyboard remote control which was used live by several artists including Elton John. With the H910 plug-in you can easily use MIDI to control pitch and harmonization in real-time.
  • Envelope Follower - Engineers and producers discovered that sending a control voltage to the hardware H910 could be used to slightly (or massively) vary the pitch, creating entirely new sounds. The built-in envelope follower makes exploring these possibilities easy.
  • OUT2 Delay Group - adds inspiring attributes to your sound.
  • True analog modeling of highly nonlinear electronics for faithful reproduction of the original H910's juicyness and grit.
  • Perform perfect pitch changes controlled manually, via MIDI or with Anti-Feedback.
  • Anti-Feedback modulates the pitch around unity for a subtle or wild effect.
  • Optional "glitching" of original H910 hardware to create unpredictable sounds as it alters pitch.
  • Modify pitch by musical intervals (diatonic) to harmonize vocals or solo instruments.
  • Delay rhythms and melodies to create everything from slap-back echoes to feedback chaos.
  • Create colorful, unique sound effects and drones through self-oscillation.
  • Individually control delay outputs and dry/wet mix.
  • Mix Lock allows for scrolling through presets or settings while keeping the dry/wet mix constant.

H910 Dual plug-in

BONUS: H910 Dual

  • Recreates two H910 units running in parallel to create doubling effects and other unique sounds.
  • Easily fattens and thickens instruments when assigning opposite pitch ratios. 
  • Stereo (cross-unit) Feedback can cause the incoming signal to shift up and then down continuously.

Videos

Presets

The H910 and H910 Dual feature hundreds of presets and include a number of artist presets.

  • Chris Carter (Throbbing Gristle)
  • Robin Finck (Nine Inch Nails)
  • The Butcher Bros. (John Lennon, Bob Dylan)
  • Joe Chiccarelli (Morissey, Frank Zappa)
  • Roy Hendrickson (Miles Davis, Frannk Sinatra)
  • Sasha (Madonna, Hot Chip)

Explore the Presets

 

Audio Feature: Robin Finck Sound Examples

Robin Finck is a guitar virtuoso most commonly known for his time in the bands Nine Inch Nails and Guns N' Roses. Finck uses the guitar to be able to achieve a plethora of new sounds which made his songwriting unique and fascinating.

Gear used/signal chain: Fano ML6 | Seymour Duncan Antiquity PAFs | JHS Kilt | AMT Legend Amps O2 | dbx 386 Tube Preamp | Apogee Quartet | LOGIC Pro X | Torpedo WOSlll | Waves CLA-2A | Eventide H910

 

The Glitch is Back

The original H910’s unique pitch change method introduced random ‘glitches’ into the audio and the word ‘glitch’ into the audio engineer’s vocabulary. Not surprisingly, artists found creative ways to use the glitch and, in fact, years later when the H949 was introduced with advanced de-glitching circuitry, some users were disappointed that the glitch was gone. In addition to the glitch, all of the quirkiness of the original H910 has been emulated. The design predates the introduction of the CD and digital audio sample rate standards (e.g. 44.1 kHz) by nearly a decade. The system clocks at the heart of the design drifted and wobbled introducing a degree of randomness in the effect not found in later crystal-based, precise digital devices. This was evident in the way that the display would flicker between pitch ratio readings. The combination of glitch, randomness and analog signal path, especially when the feedback control was turned up, added an ‘organic’ feel to the sound and that feeling comes through in the plug-in.

True End to End Emulation

Eventide has painstakingly modeled every section of the analog signal chain to recreate the sounds of the original H910.The original H910 was a 100% software-free, analog and digital processor that predated the earliest practical ADC or DSP chips by several years. It used simple digital logic gates and some of the earliest RAM memory chips but was, in large measure, an analog beast. A custom analog-to-digital converter, companding, filtering and analog feedback combined to give the unit a distinctive sound which this plug-in faithfully re-creates. 

H910 Hall of FameJoin the Elite

In 2007, the H910 was inducted in the TECnology Hall of Fame. The list of famed producers, audio engineers and musicians that still use it to this day—either in hardware or plug-in form—is a veritable “who’s who” of the recording industry. Thicken drums, create vocal harmonies and make your guitars fill up the track with the best of them. Just ask Tony Visconti (David Bowie, Thin Lizzy, ), Shelly Yakus (John Lennon, U2, Madonna), Tom Lord-Alge (Avril Lavigne, Blink 182, Santana), Tony Platt (AC/DC, Cheap Trick, Bob Marley), Laurie Anderson and Eddie Van Halen, to name a few. Once you have the H910 in your arsenal, you’ll wonder how you ever lived without it.

Artists Using H910 Harmonizer

Andre Kelman
Beastie Boys, Phoenix, Gogol Bordello, Cat Power
Chuck Zwicky
ZMix
Dave Kilminster
Roger Waters
Glenn Rosenstein
Madonna, U2, Ziggy Marley, Whitney Woerz
Joe Chiccarelli
U2, Elton John
John Agnello
Sonic Youth, Dinosaur Jr.
Laurie Anderson
Richard Devine
Schematic Records
Robin Finck
Nine Inch Nails, Guns N' Roses
Roy Hendrickson
Stewart Lerman
Patti Smith, St. Vincent, Boardwalk Empire
Stu Brooks
Dub Trio, Matisyahu, Pretty Lights, 50 Cent, Lady Gaga, Peeping Tom, Dr. John
Suzanne Ciani
Tony Visconti
Bowie, T. Rex
Vance Powell
Jack White, Sputnik Sound
Alex Solano
Pulsating Waves, Plugin Connection

H910 Harmonizer Awards

Reviews

Quirky, exotic and a bit unpredictable, the H910 just sounds beautiful...It's a plugin that really favors experimentation and that can deliver some unexpected results, so don't be afraid to try on things you wouldn't initially expect to work.
Diogo Borges
Gearslutz.com
I’d forgotten just how much fun the H910 could be, because of—its mostly lo-fi nature. I always missed the funky effects it could deliver, particularly the “bell tree” effects where a pitch spiraled upward or downward, with the spiral lasting as long as the feedback amount you set.
Craig Anderton
Harmony Central

Customer Testimonials

For the creative recordist, or sound-show manipulator, or serious student of musical sonics and speech patterns the Harmonizer also has unexplored potential for both investigating and creating a myriad of possibilities.
—Modern Recording (1976)
I don’t think there was one record that I mixed during the late 70’s and early 80’s that didn’t have the 910 somewhere on the mix. That grainy low bit musical 910 sound disappeared on all later models.   
—Michael Brauer (Coldplay, John Mayer)
It was perfect for a double track effect on the lead vocal by slightly shifting the pitch and adding a short delay. Guitarists used it all the time as an effect by turning up the Feedback control for a wild tunneling effect. I would occasionally use it to manually pitch down a drum full for a wild effect. I also used it to detune room Mics on a drum kit recorded in a small room. It gave it a... Read more
—Joe Chiccarrelli (The White Stripes, Frank Zappa)

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Platform Compatibility

Windows 8+AAX 32/64-bit, VST2 32/64-bit, VST3 32/64-bit
macOS 10.9+AAX 64-bit, AU 64-bit, VST2 64-bit, VST3 64-bit
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We test our desktop plugins in Ableton Live, Cubase, FL Studio, Logic Pro, Pro Tools, and Studio One. However, our plugins should work with any compatible host- we recommend you download a 30-day demo here to check before buying.
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