The Eventide H90 Harmonizer is a professional multi-effects pedal built on five decades of Eventide digital audio innovation. Designed to serve as the central processing hub of a guitar, bass, keyboard, or studio rig, the H90 combines 74 professional effect algorithms, hundreds of curated programs, flexible signal routing, and extensive real-time control in a single pedal.
The H90 expands on the acclaimed H9 Max by incorporating all 52 of its algorithms with additional features and improvements, alongside 22 new algorithms covering pitch shifting, modulation, delay, reverb, glitch, granular effects, synthesis, and more. Its advanced polyphonic pitch-shifting technology uses SIFT (Spectral Instantaneous Frequency Tracking) for fast, low-latency tracking.
Dual-Algorithm Processing
Unlike conventional single-effect pedals, the H90 can run two algorithms simultaneously within a single preset. The two effects can be configured in series or parallel, with flexible routing to accommodate different signal-chain requirements.
The programmable routing system allows effects to be placed before an amplifier, in an effects loop, or across separate signal paths. The H90 also supports Dual Mode, enabling simultaneous processing of two independent stereo signals.
74 Professional Effect Algorithms
The H90 includes the complete collection of H9 Max algorithms with extended functionality, plus 22 new effects such as:
- Cosmic Web
- Glitch
- GrainMod
- Stutter
- VocalShift
- VocalTune
- Quadravox+
- Polyphony
- Prism Shift
- PolyFlex
- PolySynth
- Bouquet Delay
- Head Space
- Weedwacker
- Even-Vibe
- Wormhole
- Instant Flanger
- Instant Phaser
- Aggravate
- Sticky Tape
- SP2016 Reverb
The extensive algorithm library covers harmonizers, pitch shifting, delays, reverbs, modulation, distortion, granular effects, filters, synthesis, and experimental processing.
Powerful Control & Connectivity
The H90 features five push-turn encoders, dedicated controls, and three integrated footswitches for tactile operation. Up to six external footswitches can be incorporated into a setup, along with two expression pedals and CV signals for expanded real-time control.
A built-in tuner is included, while MIDI connectivity and USB-C provide comprehensive options for pedalboard automation, editing, software updates, and studio integration.
The H90 Control software allows users to create, edit, organize, and manage programs and effect parameters from a PC or Mac.
Key Features:
- 74 professional effect algorithms
- Includes all 52 H9 Max algorithms with enhancements
- 22 additional algorithms
- Two algorithms can run simultaneously
- Serial or parallel effect routing
- Flexible stereo signal routing
- Dual Mode for two independent stereo signals
- Advanced low-latency polyphonic pitch shifting
- SIFT spectral tracking technology
- Built-in tuner
- Five push-turn control encoders
- Up to two expression pedals
- Support for up to three auxiliary switches and CV signals
- USB-C connectivity for control, MIDI, and updates
- 5-pin DIN MIDI In and MIDI Out/Thru
- External stereo send/return connections
- Compatible with instrument- and line-level signals
- H90 Control software for PC and Mac
- Power supply included
Inputs & Outputs:
- 2 × 6.3 mm mono/stereo inputs
- 2 × 6.3 mm outputs
- 2 × external insert returns
- 2 × external insert sends
- 2 × auxiliary/expression pedal inputs
- 5-pin DIN MIDI In
- 5-pin DIN MIDI Out/Thru
- USB Type-C
- 9V DC power input, center positive
Technical Specifications:
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Input Impedance: >600 kΩ (instrument level) / >80 kΩ (line level)
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Output Impedance: 220 Ω
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Recommended Load: 10 kΩ
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Maximum Input Level: +4 dBu (instrument) / +14 dBu (line)
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Dimensions: 170 × 136 × 65 mm
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Weight: 841 g
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Color: White
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Amp Modeling: No
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Drum Machine: No
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Tuner: Yes
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MIDI: Yes
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USB: Yes
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Headphone Output: No
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Battery Operation: No
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Power Supply: Included
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Item Number: 554714
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Available Since: November 2022
The Center of a Professional Rig
With its combination of dual-effect processing, programmable routing, extensive MIDI capabilities, stereo I/O, expression control, and studio-grade algorithms, the Eventide H90 can function as far more than a conventional multi-effects pedal. Guitarists can place its two effects before an amplifier or in the effects loop, while bassists, keyboard players, and studio engineers can take advantage of its flexible stereo architecture.
From classic modulation, delay, reverb, and pitch effects to experimental granular processing and synthesis, the Eventide H90 Harmonizer provides an exceptionally deep sound-design platform for live performance, recording, and professional pedalboard setups.
