Comparison
Dubby vs Eventide H9
Two fantastic effects processors built on very different philosophies. Here's an honest look at what each one does best.
Two Great Pedals, Different Strengths
The Eventide H9 is a modern classic. Its algorithms - reverbs, delays, pitch shifters, and the iconic Harmonizer - have shaped records and live shows for years. The sound quality is exceptional, the Bluetooth-enabled H9 Control app makes preset management effortless, and Eventide's decades of DSP expertise are baked into every algorithm. For guitarists and studio musicians who want polished, ready-to-go effects, the H9 is a brilliant choice.
Dubby takes a different approach. Rather than curating a fixed library, it opens the platform up - anyone can build, share, and modify algorithms using Gen~ or C++. The effects library grows with the community, and so does your creative toolkit.
Where the H9 Shines
Eventide's algorithms are studio-trusted and beautifully refined. The Shimmer reverb, the PitchFactor harmonies, the UltraTap delay - these are sounds that defined genres. The H9 Control app is one of the best companion apps in the pedal world: clean, intuitive, and great for building and organizing preset libraries. At around €560, the H9 Max gives you access to Eventide's entire algorithm catalog, which is remarkable value for that level of DSP quality. Bluetooth connectivity makes wireless control simple and convenient.
Where Dubby Stands Out
Dubby brings a few things to the table that the H9 wasn't designed for. With full quadraphonic I/O - four inputs and four outputs - Dubby opens up routing possibilities like parallel processing, multi-source mixing, and true 4-channel spatial effects. The hardware controls run at 16-bit resolution (65,536 steps vs the H9's 128-step MIDI), which makes a real difference when sweeping filters or dialing in subtle feedback changes. And with 4 knobs, an XY-click joystick, an encoder, and swappable side panels, everything stays hands-on.
The open platform is the biggest philosophical difference. If the exact effect you want doesn't exist yet, you (or the community) can build it. That's a fundamentally different relationship with your gear.
| Feature | Dubby | Eventide H9 Max |
|---|---|---|
| Audio I/O | 4-in / 4-out (Quadraphonic) | Stereo in / Stereo out |
| Headphone Output | Routable with independent volume | None |
| Latency | Sub-2ms (bare-metal ARM) | ~1.7ms (analog dry-through) |
| Control Resolution | 16-bit (65,536 steps) | 7-bit MIDI (128 steps) |
| Effects Library | Open - community + custom algorithms | 50+ Eventide algorithms (closed) |
| Custom Effects | Yes - Gen~ and C++ (libDubby) | No |
| MIDI | MIDI DIN + MIDI over USB | MIDI via external adapter |
| CV/Gate | Optional (CV Expansion panel) | No |
| Expression Input | Optional (Footswitch panel) | Yes (EXP input) |
| App Control | Dubby.Studio (web) + offline algorithm switching via SD Card + on-device preset store/recall | H9 Control (iOS/Android/Mac/Win) |
| Bluetooth | No | Yes |
| Physical Controls | 4 knobs + XY-click joystick + encoder + swappable side panels | 1 knob + 3 footswitches |
| Mapping | On-device mapping with LFOs, envelopes, and custom control curves (linear, log, exp, sigmoid) | Via H9 Control app |
| Open Platform | Yes | No |
| Price | From 899 € | ~€560 (H9 Max) |
Hear it for Yourself
Lost For Verbs - Dubby's lush reverb algorithm. From tight rooms to infinite, shimmering halls.
The Bottom Line
Both are excellent tools. The H9 gives you decades of Eventide's world-class algorithms in a compact, app-controlled package - perfect for musicians who want proven sounds with minimal friction. Dubby gives you an open platform with quad I/O, high-resolution hands-on control, and a growing community of algorithm creators. Pick the one that matches how you like to work.
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