Eventide H90 Harmonizer/Multi-Effects Pedal
zZounds Gear Experts Say...
Ready to be the heart of your board, Eventide's H90 Harmonizer features 64 effect algorithms and hundreds of programs -- everything from the H9 Max and more!
Overview
The H90 Harmonizer is Eventide's next-generation multi-effects pedal. Whether you want high-quality bread and butter effects or experimental sounds unheard, the H90 has everything you need to inspire your creativity with an intuitive UI designed with players in mind. Discover why top artists and producers have chosen Eventide through the years with 64 effect algorithms and hundreds of Program combinations curated for a variety of instruments and genres. With its comprehensive I/O and flexible routing options, the H90 is designed to be the heart of your rig.
H90 Harmonizer features modern ARM-based architecture derived from the world's most powerful effects processor, Eventide's flagship H9000 Harmonizer. This paves the way for the ongoing creation of more advanced effects processing techniques. As a result, the pedal not only offers the iconic reverbs, delays, modulation, and pitch shifting effects of the H9 Max but goes far beyond with 12 powerful algorithms including state-of-the-art, fast-tracking, and warble-free Polyphonic Pitch Shifting. Eventide's proprietary SIFT (Spectral Instantaneous Frequency Tracking) technology clears the road ahead for next- gen effects both long imagined and unimaginable.
Nine algorithms exploit the H90's raw power:
- PolyFlex - Chord-bending pitch shifter allows you to perform polyphonic dive bombs or transform your guitar into a pedal steel.
- PolySynth - Transforms your guitar into a synthesizer with three independent voices, each with… read more controls for level, shift amount, and wave shape.
- Polyphony - Pitch shift chords with ease using SIFT technology. Create rising or sinking chorus and crystals-type effects. Use Freeze to generate pad textures.
- Prism Shift - Generate three voices from a single chord whose intervals are separated, staggered, and pitch-shifted to create four arpeggio types spanning up to three octaves.
- Even-Vibe - Authentic Uni-Vibe emulation reimagined in stereo with envelope followers.
- Head Space - Vintage four-head Tape Delay with classic and modern creative tone shaping controls for grit, spatiality, and character.
- Bouquet Delay - Bucket Brigade Delay (BBD) with modulation, LoFi, and Modern flavors; includes Pitch jump and Self-oscillation performance functions.
- Wormhole - A mega-sized hyper-modulated reverb with pitch warping performance.
- Weedwacker - Two-stage, serial overdrive reminiscent of a famous green pedal.
Three algorithms from Eventide's acclaimed rackmount processors place these legendary effects at your feet:
- Instant Phaser - Authentic emulation of the world's first studio Phaser from 1971 notably used in Led Zeppelin's "Kashmir."
- Instant Flanger - Authentic emulation of the world's first studio Flanger heard on countless hit records.
- SP2016 Reverb - The legendary Room, Stereo Room, and Hi-density plate from the original studio rackmount.
That's not all. All previous H9 Max algorithms have been enriched with features previously only available on the dot9 pedals and plug-ins. Others have been enhanced to take advantage of the advanced pitch-shifting.
Two mono inserts allow you to incorporate outboard effects in any configuration or combine them for one stereo insert. Optimize your signal flow with instrument or line level operation and full gain controls to incorporate H90 into your rig or make it the centerpiece.
Dual Mode lets you do things like connect using the four-cable method or process two independent stereo instruments at once! Let the H90 Harmonizer take you beyond the effects horizon.
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H90 Harmonizer features modern ARM-based architecture derived from the world's most powerful effects processor, Eventide's flagship H9000 Harmonizer. This paves the way for the ongoing creation of more advanced effects processing techniques. As a result, the pedal not only offers the iconic reverbs, delays, modulation, and pitch shifting effects of the H9 Max but goes far beyond with 12 powerful algorithms including state-of-the-art, fast-tracking, and warble-free Polyphonic Pitch Shifting. Eventide's proprietary SIFT (Spectral Instantaneous Frequency Tracking) technology clears the road ahead for next- gen effects both long imagined and unimaginable.
Nine algorithms exploit the H90's raw power:
- PolyFlex - Chord-bending pitch shifter allows you to perform polyphonic dive bombs or transform your guitar into a pedal steel.
- PolySynth - Transforms your guitar into a synthesizer with three independent voices, each with… read more controls for level, shift amount, and wave shape.
- Polyphony - Pitch shift chords with ease using SIFT technology. Create rising or sinking chorus and crystals-type effects. Use Freeze to generate pad textures.
- Prism Shift - Generate three voices from a single chord whose intervals are separated, staggered, and pitch-shifted to create four arpeggio types spanning up to three octaves.
- Even-Vibe - Authentic Uni-Vibe emulation reimagined in stereo with envelope followers.
- Head Space - Vintage four-head Tape Delay with classic and modern creative tone shaping controls for grit, spatiality, and character.
- Bouquet Delay - Bucket Brigade Delay (BBD) with modulation, LoFi, and Modern flavors; includes Pitch jump and Self-oscillation performance functions.
- Wormhole - A mega-sized hyper-modulated reverb with pitch warping performance.
- Weedwacker - Two-stage, serial overdrive reminiscent of a famous green pedal.
Three algorithms from Eventide's acclaimed rackmount processors place these legendary effects at your feet:
- Instant Phaser - Authentic emulation of the world's first studio Phaser from 1971 notably used in Led Zeppelin's "Kashmir."
- Instant Flanger - Authentic emulation of the world's first studio Flanger heard on countless hit records.
- SP2016 Reverb - The legendary Room, Stereo Room, and Hi-density plate from the original studio rackmount.
That's not all. All previous H9 Max algorithms have been enriched with features previously only available on the dot9 pedals and plug-ins. Others have been enhanced to take advantage of the advanced pitch-shifting.
Twin-Turbo Program Power
Two of these already impressive algorithms can be combined into a Program to create novel, inspiring sounds. H90 Harmonizer's dual algorithm design features true spillover between Programs, series or parallel effect routing, and flexible I/O.Two mono inserts allow you to incorporate outboard effects in any configuration or combine them for one stereo insert. Optimize your signal flow with instrument or line level operation and full gain controls to incorporate H90 into your rig or make it the centerpiece.
Dual Mode lets you do things like connect using the four-cable method or process two independent stereo instruments at once! Let the H90 Harmonizer take you beyond the effects horizon.
Live Performance Machine
The H90 Harmonizer is a live performance powerhouse! The front panel has been reimagined with five push knobs, seven LED buttons, and a hi-res OLED display for greater hands-on control and parameter feedback. Two large push knobs allow you to switch between SELECT, BANK, and PERFORM modes with ease.Specs
-Power requirements: 12 VDC, 1 Amp center positive (+), 5.5mm/2.5mm jack
-Pedal dimensions: 6.5 in x 5.25 in x 2.75 in
-Pedal weight: 1.85 lbs
-Package includes: Eventide Sticker, 4x Rubber feet, Guitar pick, Universal power supply, USB A to type C, Quick reference guide
-Pedal dimensions: 6.5 in x 5.25 in x 2.75 in
-Pedal weight: 1.85 lbs
-Package includes: Eventide Sticker, 4x Rubber feet, Guitar pick, Universal power supply, USB A to type C, Quick reference guide
Dimensions and Weight in Packaging
White
- Shipping Weight: 2.96 lbs
- Shipping Dimensions: 11 x 7 x 3 in
- Manufacturer Part Number (MPN): 1225-000
Reviews
Reviewers gave this product an overall rating of 5 out of 5 stars.
(5 ratings)
Submitted July 7, 2025 by Joe Faraldi in Maplewood, NJ
"Creativity unleashed"
Verified Purchaser
zZounds has verified that this reviewer purchased this specific product from us.
My first experience with Eventide was their H9MAX. The Max provided me with an incredible addition to my board and I was impressed with the absolutely pristine tone and signal but always wanted more. Considered buying a 2nd one but decided to grab the H90 due to the routing and live functionality. After spending some time under the hood, I can honestly say this pedal will never leave my board. The algorithms, tone quality, switching and inserts have changed the way I play live. I do have a MIDI setup but have found that the switching capabilities of the 90 minimize the need to map like the H9 did. As for what you can achieve? Pretty much anything. I had a certain effect tone in my head (example: crystals that follow the repeats of a separate delay while blooming into a Blackhole effect) and was able to get there fairly easily. I'm now creating massive, expanding pads from my guitar that have been incredibly powerful in supporting the songs. For all you board nerds like myself, here's my chain...GT1000CORE send-->Eventide Riptide-->Two Notes Opus-->GT return-->Output to H90 with Walrus R1 in the stereo insert-->DI boxBottom line is, there are tons of devices that can give you tons of different effects (at the same time) and many are great. That said, i chose the H90 for the literally perfect tone as well as the incredible algorithms that give me creative options that are only as limited as my imagination. Its a super fun box that has improved my overall musicianship. IMO, worth…
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it at even double the price.
Musical Background:
Professional
Musical Style:
Numerous genres read less
Musical Background:
Professional
Musical Style:
Numerous genres read less
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