Eventide Audio has officially expanded the sonic horizons of its flagship processors, the H90 Harmonizer and H9000. The latest firmware update introduces four cutting-edge granular effects, transforming these industry-standard units into even more formidable tools for experimental sound design and atmospheric composition.
Moving beyond traditional reverbs and delays, this update focuses on texture, rhythmic fragmentation, and generative movement. Whether you are a film composer looking for ethereal pads or an electronic producer seeking glitchy disruptions, these new algorithms offer a “healthy dose of creative chaos.”
Meet the New Granular Algorithms
The update adds four distinct effects—Cosmic Web, Glitch, GrainMod, and Stutter—each designed to manipulate audio at the microscopic level.
1. Cosmic Web
This algorithm is a sound designer’s dream for ambient textures. It blends inverted, pitch-shifted grains with Eventide’s legendary reverb. The result is a dense, floating soundscape that sits perfectly between a shimmer delay and an evolving synth pad.
2. Glitch
For those who prefer digital destruction, Glitch slices audio into fragments, distorts them, and reassembles them. Users can stack three different glitch types, allowing for everything from subtle digital “crackle” to rhythmically precise, chaotic structures.
3. GrainMod
If you want sounds that never repeat, GrainMod is the answer. It uses multiple independent LFOs to modulate grain parameters, including trigger rate, duration, and filter frequency. This creates a constantly shifting sonic spectrum that breathes life into static tracks.
4. Stutter
Taking a more rhythmic approach, Stutter provides a refined version of classic granular chopping. It allows users to create precise rhythmic patterns and subdivisions, ranging from rapid-fire “rolls” to wide, sweeping rhythmic gaps.

A Platform for Experimental Sound Design
With this release, Eventide reinforces that the H90 and H9000 are not just “static” effects boxes, but evolving platforms. By prioritizing experimental textures over standard utility effects, Eventide is leaning into the needs of modern producers who crave unpredictability and unique sonic signatures.
| Feature | Best For |
| Cosmic Web | Ambient pads and cinematic swells |
| Glitch | IDM, Industrial, and rhythmic destruction |
| GrainMod | Generative textures and evolving soundscapes |
| Stutter | Rhythmic gating and glitch-hop patterns |

How to Get the Update
The best news for current owners? The update is entirely free of charge. Users can download the latest firmware via the Eventide Device Manager (EDM) for the H90 or the Emote software for the H9000.
UK Eventide Dealer
H90 Harmonizer Dark LTD at Andertons
H90 Harmonizer Multi-effects Pedal and Mixing Link Mic Preamp at Andertons
US Eventide Dealer
H90 Harmonizer Multi-effects Pedal and Mixing Link Mic Preamp at Sweetwater
EU Eventide Dealer

The Verdict: Eventide’s Granular Update
The latest update for the H90 Harmonizer and H9000 is more than just a minor patch; it is a fundamental shift in the identity of these devices. By moving away from “classic” utility and into the realm of creative chaos, Eventide has solidified its position at the top of the boutique effects market.
Pros
-
True Sonic Innovation: Unlike “vanilla” granular effects, Cosmic Web and GrainMod offer a uniquely lush, musical quality that is difficult to replicate with standard plugins.
-
High Value for Users: Providing four flagship-tier algorithms for free is a significant win for owners, extending the lifecycle and relevance of the hardware.
-
Experimental Power: The update transforms the H90 from a “super-pedal” into a legitimate experimental sound design platform, bridging the gap between guitarists and modular synth enthusiasts.
-
H9000 Longevity: For H9000 Gen2 users, this keeps the $7,000+ investment feeling cutting-edge and future-proof.
Cons
-
The Learning Curve: These are not “set-and-forget” effects. Users will need to spend time with the H90 Control or Emote software to truly harness the modulation possibilities.
-
Hardware Limitations (H90): While powerful, you are still limited to running two algorithms at once on the H90. Some users might find themselves wishing for a third slot to layer these complex textures further.
-
Gen1 H9000 Restrictions: While Cosmic Web and GrainMod are available, Gen1 H9000 units lack the processing power for Glitch and Stutter, which may disappoint long-term legacy owners.
Final Score: 9.5 / 10
A must-have update. Eventide continues to prove that their hardware is an evolving ecosystem rather than a static product. If you own these units, this update is an essential upgrade that will likely spark your next several months of creative exploration.
More Information
#Eventide #H90 #H9000
This article may contain affiliate links to Andertons, DeathCloud, Donner, Fender, Gear4Music, Positive Grid, Sweetwater, and Thomann that help finance the running costs of GuitarBomb. We will receive a small commission if you buy something through these links. Don’t worry; you pay the same price, and it costs you no extra to use these affiliate links for your purchases.