The H-90 sports comprehensive I/O, including two 1/4" mono inserts, which can be combined into one stereo insert, for incorporating outboard effects, or use Dual Mode to process two independent stereo instruments at once. Two expression/control inputs let you connect up to two external control switches or accept CV signals, and the USB-C jack lets you use the H90 Control software to edit programs, create lists, and update firmware on a Mac or PC.
- Hundreds of factory presets, which can be loaded in either SELECT or BANK mode
- 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 stereo signals at once
- Five push-turn knobs for tactile control
- Four 1/4" inputs (two stereo pair), four 1/4" outputs (two stereo pair), and two expression/control/CV inputs
- Two MIDI 5-pin DIN jacks for input, output, and thru
- One USB-C jack for software editing
Seven new algorithms exploit the H-90'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, lo-fi, and modern flavors; includes pitch jump and self-oscillation performance functions.
- Wormhole—A megasized hypermodulated reverb with pitch-warping performance.
- Weedwacker—Two-stage serial overdrive reminiscent of a famous green pedal.
Three algorithms from Eventide's acclamed 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 rack.
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.
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 H-90 also comes with a built-in tuner.