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Average Price: $888

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$100

$501+

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Price History

Based on price data from 1 merchant for "Eventide Clock Works H910 Harmonizer". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unlock the sonic potential of your studio with the Eventide Clock Works H910 Harmonizer, a legendary effects processor that revolutionized the music industry as the first digital effects processor. This versatile tool combines pitch shifting, modulation, and delay to craft a soundscape like no other. From the gritty riffs of AC/DC to the ethereal tones of David Bowie, the H910's unique character has left an indelible mark on countless iconic tracks.

The H910 Harmonizer plug-in is a meticulous recreation of the original hardware, delivering the same rich, organic sound that made the H910 an industry staple. Its pitch-changing prowess is perfect for creating musical intervals, harmonies, and even slap-back delays. With extreme settings, delve into a world of mechanical sounds, drone effects, and robot-like vocalizations using self-oscillation and anti-feedback.

New enhancements like Keyboard and Envelope pitch control modes, along with the Output 2 Delay Group and Mixer, allow for greater sound sculpting flexibility. The addition of the H910 Dual Harmonizer brings a new dimension with its ability to run two H910 units in parallel, creating lush, doubling effects and more.

Whether you're looking to fatten up snares, spread guitar tones, or add a touch of digital magic to vocals, the H910 Harmonizer offers an unparalleled array of possibilities to elevate your music production.

Key Features:

  • Faithful recreation of the original H910 hardware
  • New Keyboard and Envelope pitch control modes
  • Output 2 Delay Group for stereo sound expansion
  • True analog modeling of original H910's electronics
  • Create musical intervals, harmonies, and unique sound effects
  • Includes H910 Dual Harmonizer for parallel processing
  • Hundreds of artist presets for creative inspiration

Product specs

Brand Eventide
Model H910 Harmonizer
Finish Black
Year 1970s
Categories Multi-Effect

FAQs

What are the main features of the Eventide H910 Harmonizer?

The Eventide H910 Harmonizer is renowned for its pitch shifting, delay, and modulation capabilities. It was the first commercially available digital effects unit, offering unique sound processing options that became iconic in the 1970s.

How does the Eventide H910 Harmonizer affect sound?

The H910 Harmonizer can alter pitch and apply delay and modulation to create complex sound textures. This makes it ideal for adding depth and character to recordings, as famously used by artists like Eddie Van Halen.

Is the Eventide H910 Harmonizer suitable for live performances?

Yes, the Eventide H910 Harmonizer can be used in live settings to enhance sound with its pitch shifting and delay effects, providing dynamic and unique audio processing in real-time.

Can the Eventide H910 Harmonizer be used with modern recording setups?

While originally designed in the 1970s, the H910 Harmonizer can be integrated into modern studios with the appropriate connections, offering vintage digital effects to contemporary productions.

Eventide Audio

Eventide Audio

History of the Eventide H910 Harmonizer®

Video thumbnail for History of the Eventide H910 Harmonizer® by Eventide Audio

History of the Eventide H910 Harmonizer®

Eventide Audio

Eventide Audio

Video thumbnail for Eventide H910 Harmonizer by Arthur Stone

Eventide H910 Harmonizer

Arthur Stone

Arthur Stone

Video thumbnail for Eventide H910 vocal demos by SynthMania

Eventide H910 vocal demos

SynthMania

SynthMania

Video thumbnail for Tony Visconti and the Eventide H910 Harmonizer (Full Version) by Eventide Audio

Tony Visconti and the Eventide H910 Harmonizer (Full Version)

Eventide Audio

Eventide Audio

Video thumbnail for Eventide H910 - October 26, 2020 by SynthMania

Eventide H910 - October 26, 2020

SynthMania

SynthMania

Video thumbnail for Eventide H910 by Mike Foo (Tritone Amplification)

Eventide H910

Mike Foo (Tritone Amplification)

Mike Foo (Tritone Amplification)

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Eventide Clock Works H910 Harmonizer.

Setup and maintenance

  • The brittle PCB pads on the H910 are prone to damage during desoldering; caution with heat is essential to avoid ruining the board.

    Source
  • Replacing open tantalum capacitors and faulty 40174 latch ICs can resolve pitch distortion issues in the H910.

    Source

Features and functionality

  • The H910's pitch shifting is notable for its gritty, lo-fi sound, often described as unique and highly desirable by vintage gear enthusiasts.

    Source
  • Users highlight the H910's ability to change pitch without altering speed, making it versatile for processing samples and inspiring creative experimentation.

    Source

Use cases and applications

  • The H910 was used in combination with a computer running autotune to create effects heard in Bon Iver's "Creeks" and other tracks by Chance the Rapper.

    Source
  • The H910 is praised for creating unique, trippy effects on snare drums, as demonstrated in covers of Frank Zappa's "Watermelon in Easter Hay."

    Source

User experience

  • Owners find the Eventide H910 valuable for its distinct "Time Machine" effect, famously used by artists like David Bowie and Brian Eno.

    Source

Comparisons

  • The H9 features an H910 algorithm with similar controls, allowing users to access the classic effects of the H910 within the modern H9 unit.

    Source

Critic Reviews

Blast from the past: Eventide Clock Works H910 | MusicRadar

musicradar.com

The Eventide Clock Works H910 Harmonizer is celebrated for its pioneering role in digital pitchshifting. Launched in 1974, this innovative device set a new standard with its unique sound, which remains revered even today. It gained fame with high-profile users like Eddie Van Halen and David Bowie's producer, Tony Visconti. Although its features seem modest by modern standards, the H910's distinct 'glitchy' artifacts are now considered a desirable trait. While the original is rare and costly, its legacy lives on through various plugins that emulate its distinctive character.

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Artist usage

Add artist
See how Alan Moulder uses Eventide Clock Works H910 Harmonizer

Alan Moulder

Music Producer, Audio Engineer

Tapeworm

...
Verified via Soundonsound

"The effects returns on the SSL are pretty much hard-wired, and I would have used a selection of them. On the left side are the Elysia compressor, Fatso Jr tape simulator and compressor, Neve 33609 compressor, Ridge Farm Boiler compressor, Distressor, Dbx 160 compressor, AMS DMX150s delay, Eventide 2016 and H3500 effect units, and EMT plate reverb, and on the right the Drawmer compressor, Valley People Dynamite compressor, Marshall Time Modulator which is an '80s short delay and phaser, Delta Lab Effectron which is a very old digital delay, Thermionic Culture Vulture, Dbx 120 [subharmonic synthesizer] and Eventide H910 Harmonizer.”

See how David Rosenthal uses Eventide Clock Works H910 Harmonizer

David Rosenthal

Keyboardist, Music Producer

Rainbow

...
Verified

David Rosenthal is confirmed to use the Eventide Clock Works H910 Harmonizer as part of his rig during Rainbow's 1982 performances. This information is directly sourced from David Rosenthal's official keyboard rig documentation.

See how Paul Millar uses Eventide Clock Works H910 Harmonizer

Paul Millar

Singer, Keyboardist

...
Verified via YouTube

he uses this pretty much everywhere, but this demo is the most obvious place where he does that https://youtu.be/MCMjcI1hS5c

See how Kristian Schultze uses Eventide Clock Works H910 Harmonizer

Kristian Schultze

Keyboardist, Composer

Cusco

...
Verified via Sequencer.de - Synthesizer-Forum

Christian Bruhn once fetched Timm Thaler's multi-track tape from the shelf just for me to tell me the original instruments from the track plan, I almost passed out with "Unworthiness". He had Kristian Schultze (also a brilliant musician, unfortunately already in heaven) to record the synthesizers, who had recorded the tracks in his own studio and on his instruments, as well as the Captain Future Tracks. A SH-2000 was not there, if you listen carefully you can clearly see the Minimoog. As hard as it is, Schultze had used all the unaffordable super sound monsters for the two soundtracks. So, here is the original information from C. Bruhn from the track plan:

Prophet 5 (Schultze had a rev2), Roland Jupiter 4 (you can clearly hear that on Captain Future), Minimoog, unfortunately actually also a Yamaha CS-80 and a rare Wersi string machine, as well as an eventide h910 harmonizer, the cascading pitch -Effect can also be clearly heard, along with the tape echo flutter.

I hope this clears up a piece of audio history for all Captain and Thaler fans.

Of course, I was also at an appointment for Mr. Bruhn's cinema tour. At the end of the question and answer session he had a piano medley from Cptn for me. Future and Timm Thaler played. Dark hall, I stood wg. my question, everyone else was sitting and Mr. Bruhn was playing for me. I will never forget the moment, 1.5 minutes of complete trance ... Thank you very much, Mr. Bruhn!

See how Christian Bruhn uses Eventide Clock Works H910 Harmonizer

Christian Bruhn

Keyboardist, Composer

...
Verified via Sequencer.de - Synthesizer-Forum

Christian Bruhn once fetched Timm Thaler's multi-track tape from the shelf just for me to tell me the original instruments from the track plan, I almost passed out with "Unworthiness". He had Kristian Schultze (also a brilliant musician, unfortunately already in heaven) to record the synthesizers, who had recorded the tracks in his own studio and on his instruments, as well as the Captain Future Tracks. A SH-2000 was not there, if you listen carefully you can clearly see the Minimoog. As hard as it is, Schultze had used all the unaffordable super sound monsters for the two soundtracks. So, here is the original information from C. Bruhn from the track plan:

Prophet 5 (Schultze had a rev2), Roland Jupiter 4 (you can clearly hear that on Captain Future), Minimoog, unfortunately actually also a Yamaha CS-80 and a rare Wersi string machine, as well as an eventide h910 harmonizer, the cascading pitch -Effect can also be clearly heard, along with the tape echo flutter.

I hope this clears up a piece of audio history for all Captain and Thaler fans.

Of course, I was also at an appointment for Mr. Bruhn's cinema tour. At the end of the question and answer session he had a piano medley from Cptn for me. Future and Timm Thaler played. Dark hall, I stood wg. my question, everyone else was sitting and Mr. Bruhn was playing for me. I will never forget the moment, 1.5 minutes of complete trance ... Thank you very much, Mr. Bruhn!

C

Colin Thurston

Music Producer, Audio Engineer

Bewlay Bros.

...
Verified via Muzines

"We used two harmonisers - the new Eventide H949 with the reverse switch on it, and also the H910 which was the first one Eventide brought out. I used the H910 on all of Simon Le Bon's vocals on the whole album - I actually recorded a harmoniser blended with his voice on every track. I think the band thought I was using it as a monitor track and not actually recording it. When they said 'can you take the harmoniser off' I said no - it suits Simon's voice I believe. For me, it gives a certain hardness to a voice that you can't achieve via EQ or anything else."

See how Peter Schmidt uses Eventide Clock Works H910 Harmonizer

Peter Schmidt

Audio Engineer

...
Verified via Photo

In this photo from an interview with Amazona.de, it is confirmed that Peter Schmidt uses the Eventide Clock Works H910 Harmonizer.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Eventide Clock Works H910 Harmonizer, it is most commonly used with the following gear.

1 alternative for Eventide Clock Works H910 Harmonizer, curated by the Equipboard community.

Eventide MicroPitch Delay

$249.00 - $279.00

similar sound cheaper alternative

Be honest, you're looking up the H910 because you like Eddie. Eddie used two of these units between 86' and 95' live and in the studio. He used it for nothing else but pitch shifting, specifically -/+9cents left and right. You don't need to spend $5K on these for that "Balance" sound. You don't need a Helix or an AxeFX III either. I recommend the Eventide Micropitch Delay (retails for $260) for that Eddie tone. You don't even need to dial it in-- Eddie's H910 setting is one of the presets. The Eventide Micropitch Delay is a permanent fixture in my pedalboard.

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