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Eventide H90 Harmonizer Multi-FX Pedal

Premium multi-effects workstation with 62 studio-quality FX, flexible I/O, MIDI & much more!



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SKU: H90

Product Description

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 user interface designed with players in mind. Discover why top artists and producers have chosen Eventide through the years with 62 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!

New Technology, New Effects

Eventide's H90 Harmonizer features modern ARM-based architecture derived from the world's most powerful effects processor — the Eventide H9000 Harmonizer. This paves the way for the ongoing creation of more advanced effects processing techniques. As a result, the H90 pedal not only offers the iconic reverbs, delays, modulation, and pitch-shifting effects of the H9 Max, but goes far beyond with 10 new 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!

Seven new algorithms exploit the H90's raw power:

  • 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 new advanced pitch-shifting.

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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. Optimise 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 Eventide 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. In Perform mode, you get six programmable footswitches. Map functions like tap tempo, preset, insert bypass or momentary states; use them to engage options like reverb freeze, pitch flex, or delay repeat; make multiple instantaneous parameter changes with three HotSwitches.

The comprehensive UI allows you to control any parameter with ease. Adjust expression mappings by hand with the Perform HotKnob and engage up to six individual assignable parameters with the three push-button Quick Knobs. Get even more control with two inputs for expression pedals or auxiliary switches with up to three buttons. If that wasn't enough, take advantage of the pedal's extensive MIDI control.

The H90 comes with hundreds of factory Programs which can be loaded using either Select or Bank mode. In Select mode, you can navigate your Playlist sequentially without ever missing a detail thanks to the OLED display. In Bank mode, you can quickly load from a bank of 3 Programs, perfect for cueing up a range of sounds for a song. Organising your favorite sounds has never been easier, simply load a new Playlist and you're ready for the next gig!

Key Features

  • Preloaded with 62 effect algorithms: 10 new effect algorithms (Polyphony, Prism Shift, Bouquet Delay, Head Space, Weedwacker, Even-vibe, Wormhole, Instant Flanger, Instant Phaser, and SP2016 Reverb). Includes all 52 effect algorithms from the H9 Max Harmonizer with enhanced features and improvements.
  • New low-latency Polyphonic Pitch Shifting with SIFT (Spectral Instantaneous Frequency Tracking) technology.
  • ARM-based architecture lays the foundation for new and exciting creative effects.
  • Use two algorithms at once per Program.
  • True spillover between Programs.
  • Route effects in series or parallel.
  • Instrument or Line level operation.
  • Two mono inserts or one stereo insert can be positioned anywhere in the signal chain.
  • Dual mode for processing two independent stereo signals at once.
  • Five push-turn knobs for more tactile control.
  • Two expression inputs for pedals, up to 3-button auxiliary switches, and CV signals.
  • Use H90 Control software to edit Programs, create lists, and update firmware on a Mac or PC.
  • Built-in tuner.
Elliot Stent author picture

Written by Elliot Stent

Customer Reviews


7 reviews





Mr Peter Stock25th Jan 2024

Value 4Looks 5Durability 4Sound 5

Mr Erik Badarello30th Jul 2023

Great effect pedal, lots of controls and settings for finding the right effect and sound you need. A beast of a pedal. 🔝

Value 4Looks 5Durability 5Sound 5

Sel Balamir27th May 2023

An amazingly complex piece of gear - but the interface is so poorly thought out and overly optimistic that it is rendered almost impossible to use without having a laptop to connect it to. If you are used to using the H9 with the handy phone app - it's nothing like that. And there's no phone app for the H90 - so if you dont have a nice new computer you're pretty screwed.

Value 4Looks 5Durability 4Sound 5

Mr John Irvine1st May 2023

Amazing amount of possibilities available from this effects unit. Discover new sounds you never imagined you could create.

Value 4Looks 5Durability 5Sound 5

Trusted Customer15th Jan 2023

Nice piece of kit but the interface is a little non-intuitive at first - tutorials and time aye needed to get flowing with it.

Value 3Looks 5Durability 4Sound 5

Trusted Customer3rd Jan 2023

Fantastic pedal. Expensive but considering it is effectively two H9 Max plus a LOT more in one box it’s actually quite good value for money. Industry leading algorithms and interfacing. Runs great off a Cioks DC7.

Value 5Looks 5Durability 5Sound 5

Mr. Rohan Leach3rd Jan 2023

Simply the best product on the market. Nothing comes close - nothing. Yes, it does all of the ethereal and pitch shifting stuff to the highest calibre, but the normal, bread and butter effects are just stunning. The routing options take this pedal to another level too. As with everything by Eventide, the UX can be challenging, but once you get in the mindset, its OK. The computer interface makes everything easier. The power supply is cheap, but if you are dropping £1K on a pedal, it would be hard to imagine that you won't have a decent power supply already. If you haven't, this should be your next purchase - there are plenty of options, don't skimp. It's the first pedal that makes me _not need anything else_. *secret tip*: the best drive sounds, are included in other algorithms, not in the dedicated patches - be prepared to be impressed :)

Value 4Looks 5Durability 4Sound 5

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Andertons Music Company's Registered Office: 58-59 Woodbridge Road, Guildford, GU1 4RF. Andertons Music Company acts as a credit broker and not a lender and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority. Andertons Music Company is authorised and regulated by the Financial Conduct Authority, firm registration number 716155. Credit provided subject to age and status.