Used Osmose

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  • Regular price $1,499.00
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Immaculate Open Box OSMOSE In Stock! $1499

Osmose is the new standard for musical expressivity. Use intuitive gestures to control this standalone synthesizer and upgrade your playing & production skills. Press, bend, shake, strum & more to interact with keyboards & electronic sounds in a new organic way. Whether you’re a veteran keyboardist, a workflow-oriented producer, a daring sound designer, or anything in between, Osmose will take your musical journey to uncharted places.

Behind the expressivity of Osmose lies a few natural gestures you already know well. Discover how they interact with Osmose and enhance your musicianship from the very first touch.

Osmose is a collaborative project. We have thus teamed up with top musicians across the globe — from seasoned jazz & classical pianists to Grammy-winning trap producers - to make sound demos that help you see what Osmose can add to the music genres you love!

Designed in France to stand the test of time and touring with style, Osmose is made of quality components and boasts a high repairability index.

modern keybed 

Osmose’s identity lies in its custom, Augmented Keyboard Action (A.K.A.) keybed, its build quality, and a fun, ergonomic playing experience. These elements make this expressive synthesizer a reinterpretation of the work of traditional acoustic instrument makers.

a.k.a., augmented
keyboard action

Developed by Expressive E, the Augmented Keyboard Action (A.K.A.) is the technology inside every key of Osmose. It offers a seamless connection between every gesture played by the musician & the resulting sound. This means that despite being an electronic synthesizer, Osmose feels more like an acoustic instrument to play. Press, bend, shake, strum, and more to create sounds that are truly yours.

3-axis motions
for every key

extended polyphonic pressure
Sound is produced as soon as you brush the keys, with an incredible level of nuance & dynamics.
hi-resolution polyphonic aftertouch
Past a certain pressure threshold, a new sound variation is triggered, with tremendous level of control & dynamics.
polyphonic pitch control
Add vibrato to notes and bend them by intuitively shifting keys from left & right. Each key’s pitch variations can be independent.

the eaganmatrix sound

custom-made by haken audio
We designed Osmose’s keybed to pick up every gesture & performance nuance. We needed a sound engine that could interpret motion with the same degree of precision. The EaganMatrix continuously analyzes gestures and processes this data instantly to intimately control synthesis parameters. This allows for an organic connection between the player & the instrument, similar to a player’s interaction with an acoustic instrument.
a self-defining sound identity
EaganMatrix is a digital modular sandbox that offers a large palette of sounds. From virtual analog to FM synthesis, to physical modeling and more, Osmose displays an infinite landscape of unique, wild acoustic & electronic sounds. Every gesture & articulation can modulate various parameters of the synth engine in innovative & unexpected ways.
a modular approach to sound design
EaganMatrix is a laboratory of synthesis, made of unique building blocks for you to assemble creatively. If you want to go further with the sound design, the powerful EaganMatrix can be edited via the haken Editor (Mac/PC) software. Built to create advanced sound design for continuous instruments, the haken Editor goes far beyond classical modular systems by putting the 3 control parameters of A.K.A at the heart of the sound design process.

external connections


Osmose features various connectivity options to help you in live and studio settings. The Osmose back panel contains L/R 1/4” jacks, two pedal inputs, a MIDI In/Out combo, and a USB port. A headphone jack socket with its own volume control is also featured on the front panel.

external midi

Use Osmose as a MIDI controller to unlock the true potential of your favorite synthesizers. Connect to any soft or hardware synthesizers using Osmose's MIDI In/Outs and USB ports. Even if your synthesizer does not respond to polyphonic aftertouch or MPE, Osmose can still control it.
How to control your gear with Osmose → Using Osmose as MIDI controller
poly aftertouch and global pitch bend
Control your synth with Osmose’s Initial Pressure system & Poly Aftertouch. Every key can also control the global pitch bend of your synth.
piano mode
You may not always need added expressivity. If needed, Osmose can act as a classic keyboard controller, sending simple velocity messages.
standalone configuration
Set up your MIDI configuration directly from the in-built screen, without the need to connect to a computer.

design and build quality

Proudly designed in France, Osmose boasts a stealth black casing & signature key stems that will both please crowds and stand the test of time. Made out of rugged materials and assembled in a solid glueless design, Osmose is a road & studio-ready instrument.

ecodesign commitment

To make Osmose more sustainable, we laid out a complete eco design plan, taking all steps of its lifecycle into account:
  • Osmose is made of 66% recycled materials
  • Its components are assembled without glue, meaning Osmose can be disassembled completely with only two commonly-found screwdrivers
  • Expansive resistance procedures were conducted to test the product in tough contexts
  • An auto-diagnostic tool was developed for Osmose to help solve customer support requests more efficiently & reduce unnecessary shipments


Osmose is the new standard for musical expressivity. This standalone polyphonic synthesizer unlocks new ways to control sound with familiar gestures (press, bend, shake & more). It features a deep sound design engine and hundreds of ready-to-use, innovative presets. It also functions as a powerful controller for hard & software synthesizers!

technical specs

49 full-size keys with three-dimensional control

standalone synthesizer, MPE MIDI Controller, and classic MIDI controller

sound engine
EaganMatrix, a digital modular engine by Haken Audio

up to 24 voices

color LCD screen, pitch and modulation sliders

pedal inputs
2 continuous pedal inputs, assignable to sustain or synth parameters
DIN MIDI In, MIDI Out/Thru, USB Type B
audio output
two ¼" TS pseudo balanced line outputs, ¼" TRS headphone output
894 x 316 x 87.5 mm / 35.2" x 12.4" x 3.4"
8.3 kg / 18.4 lbs
external PSU with lockable connector, 12V, 1.5A, center positive
Software updater for new firmware and library versions
A Mac/PC editor to create and edit sounds