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Digital data of a world-renowned Japanese-made machine is now available for download.

Eventide H90 Harmonizer: The next generation's best spatial multi-effect pedal [Sound demo and reviews]

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Sending Japan's finest tone to the world

  • DIGITAL CAPTURES
    Archiving Japanese boutique pedals and world-renowned equipment in studio quality (Quad Cortex & TONEX)
  • THE GEAR
    Try it digitally first, and if you really like it, go for the actual device.
    *Limited to those outside of Japan
  • THE VINYL
    A selection of Japanese analog sounds, including anime and fusion music.

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Eventide not only produces guitar effects, but also a variety of audio equipment for musicians and engineers.

The H9, a compact spatial effector that was frequently used on the boards of professional guitarists and studio musicians, has been updated to the next generation.

Eventide H90 Harmonizer

In addition to improving the operability of the unit itself, the quality has also been improved.

This model packs all the performance of a rack-type multi-speaker into a compact unit, and is sure to become the next generation of spatial multi-speaker units.

Eventide
172,725 JPY(TAX+) (As of 2026:05 on March 15, 19 | According to Amazon)
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About Eventide | About the brand

About Eventide

EVENTIDE is an American audio equipment manufacturer that produces digital audio processors for broadcasting and recording. The Harmonizer "H1987," released in 3000, is a historic masterpiece that has been loved by many musicians and engineers. Currently, in addition to spatial effects such as delay and reverb, the company also develops guitar stomp boxes and plug-in software to suit the increasingly diverse music production environment.

Eventide H90 Harmonizer|Spec & Info.

Eventide H90 Harmonizer Basics

Effector NameH90 Harmonizer
BrandEventide
CategoriesMulti Effector
Specification.Power: 12V DC @ 1A / Center Positive (+), 5.5/2.5mm jack
Dimensions: 170 (W) x 136 (D) x 68 (H) mm
Weight: 0.84 kg

Premier multi-effects pedal with 62 studio-quality effects and flexible I/O

The H90 Harmonizer is Eventide's next generation multi-effects pedal.
Whether you're looking for high-quality essential effects or unprecedented experimental effect sounds, the H90 has everything you need to inspire your creativity with an intuitive, player-focused UI.
With a combination of 62 effect algorithms and hundreds of programs curated for a variety of instruments and genres, you'll see why top artists and producers have chosen Eventide for years.
With its flexible I/O and routing options, the H90 is designed to be the centerpiece of your rig.

Eventide H90 Harmonizer Features
  • 62 preloaded effect algorithms:
    10 new effect algorithms:
    Polyphony, Prism Shift, Bouquet Delay, Head Space, Weedwacker, Even-vibe, Wormhole, Instant Flanger, Instant Phaser, SP2016 Reverb
    All 9 effect algorithms from the H52 Max Harmonizer included, enhanced and improved
  • New low-latency polyphonic pitch shifting with SIFT (Spectral Instantaneous Frequency Tracking) technology
  • ARM-based architecture lays the foundation for exciting new creative effects
  • Two algorithms can be used simultaneously per program
  • True spillover between programs
  • Series or parallel effects routing
  • Instrument or line level operation
  • Two mono inserts or one stereo insert can be placed anywhere in the signal chain
  • Dual mode for simultaneous processing of two independent stereo signals
  • Five push-turn knobs provide more tactical control
  • Pedal, up to 3 button AUX switch, 2 expression inputs for CV signals
  • H90 Control software allows you to edit programs, create lists and update firmware on your Mac or PC
  • built-in tuner

Eventide H90 Harmonizer|Feature

New technology, new effects

The H90 Harmonizer uses a state-of-the-art ARM-based architecture derived from Eventide's flagship H9000 Harmonizer, the world's most powerful effects processor.
This paved the way for the continued creation of more advanced effects processing techniques.
The result is a pedal that not only delivers the iconic reverb, delay, modulation, and pitch-shifting effects of the H9 Max, but goes even further with 10 new powerful algorithms, including state-of-the-art fast-tracking, stable polyphonic pitch shifting.Eventide's exclusive SIFT (Spectral Instantaneous Frequency Tracking) technology paves the way for next-generation effects long unimagined.

Seven new algorithms to bring out the full potential of the H90

7 new algorithms
  • Polyphony
    SIFT technology lets you easily pitch shift chords. Create ascending or descending chorus and crystal type effects. Use Freeze to generate pad textures.
  • Prism Shift
    It generates three voices from one chord and then splits, modulates, and pitch-shifts the notes to create four different arpeggios spanning up to three octaves.
  • Even-Vibe
    An authentic Uni-Vibe emulation, brought to life in stereo with envelope follower.
  • Head Space
    Vintage 4-head tape delay with classic and modern creative tone-shaping controls for creating grit, space and character.
  • Bouquet Delay
    Bucket Brigade Delay (BBD) comes in Modulation, LoFi and Modern flavours, with pitch jump and self-oscillation performance capabilities.
  • Wormhole
    A mega-sized hyper-modulated reverb with pitch warping capabilities.
  • Weedwacker
    A two-stage serial overdrive reminiscent of the famous Green pedal.

Featuring three algorithms from Eventide's award-winning rackmount processors

  • Instant Phaser
    An authentic emulation of the world's first studio phaser, made in 1971, used on Led Zeppelin's "Kashmir".
  • Instant Flanger
    An authentic emulation of the world's first studio flanger heard on countless hit songs.
  • SP2016 Reverb
    The legendary Room, Stereo Room and Hi-density plate have been ported over from the original studio rack mounts.

Twin turbo programmed power

Combining two of these amazing algorithms in one program allows you to create fresh and inspiring sounds. The H2 Harmonizer's dual-algorithm design features true spillover between programs, series or parallel effects routing, and flexible I/O.
Two mono inserts allow you to freely configure your outboard effects or combine them into one stereo insert. Instrument or line level operation and full gain control optimize your signal flow, making the H2 the perfect addition or centerpiece to your rig.
In Dual Mode, you can run the H90 with four cables or process two independent stereo instruments simultaneously. The H4 Harmonizer invites you to push the boundaries of what effects can do.

Live Performance Machine

The H90 Harmonizer is also great for live performances!
The front panel has been redesigned with five push knobs, seven LED buttons and a high-resolution OLED display for more hands-on control and parameter feedback. Two large push knobs allow easy switching between SELECT, BANK and PERFORM modes. In PERFORM mode, six programmable footswitches are available. Map functions like Tap Tempo, Preset, Insert Bypass and Momentary, use options like Reverb Freeze, Pitch Flex and Delay Repeat, or instantly change multiple parameters with three HotSwitches.
The intuitive UI puts every parameter at your fingertips. Manually adjust expression mapping with the PERFORM HotKnob, or activate up to six individually assignable parameters with three push-button quick knobs. Plus, two inputs for expression pedals and AUX switches with up to three buttons give you even more control. Plus, MIDI control is also possible.
The H90 comes with hundreds of factory programs that can be loaded in SELECT or BANK mode. In SELECT mode, the OLED display allows you to navigate sequentially without missing any details in your playlist. In BANK mode, you can quickly load from three program banks, perfect for recalling a variety of sounds for a song. Organize your favorite sounds, load a new playlist and you're ready for your next gig.

Eventide H90 Harmonizer|Sound Demo

Eventide H90 Harmonizer Review

This is by far the most expensive pedal I have ever bought. But so worth it. I would sell my BigSky or SLO or Mercury7 to cover the cost. I don't need those anymore. It's so amazing to have this little Stumpbox next to my Kemper Stage because its half the price of the Stage. But this little thing is "next level".

Overseas reviews More translations

Here are my preferences:
1- Ability to use multiple effects simultaneously.
2- High quality sound of effects.
3- There are significant improvements over H9.
4- You can effectively tweak the sound either on the pedal itself or in software.
5- Easily adjust parameters via the pedal dial or expression pedal function.
6- Routing options for guitar or bass.
7- Zero latency sound switching with spillover and instant switching.
8- Unlike the H9, it does it all in one unit. H1 users will want the H9.

Overseas reviews Than
Eventide
172,725 JPY(TAX+) (As of 2026:05 on March 15, 19 | According to Amazon)

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