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EXPRESSIVE E Osmose 49-Key Synthesizer and MPE Controller

BH #EXXPEOSM491 • MFR #XPEOSM49-1
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EXPRESSIVE E Osmose 49-Key Synthesizer and MPE Controller
Key Features
  • 49 Full-Size Keys with 3D Control
  • Standalone Synthesizer
  • MPE MIDI Controller
  • Classic MIDI Controller
Musicians, producers, and sound designers looking for more expression in a synthesizer/controller will be thrilled with the Expressive E Osmose, a 24-voice polyphonic synthesizer with an innovative way to control sound using gestures (press, bend, shake, and more). The instrument features a deep sound-design engine and hundreds of ready-to-use, innovative presets. It also functions as a powerful controller for hardware and software synthesizers.
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EXPRESSIVE E Osmose Overview

Musicians, producers, and sound designers looking for more expression in a synthesizer/controller will be thrilled with the Expressive E Osmose, a 24-voice polyphonic synthesizer with an innovative way to control sound using gestures (press, bend, shake, and more). The instrument features a deep sound-design engine and hundreds of ready-to-use, innovative presets. It also functions as a powerful controller for hardware and software synthesizers.

Expressive E has combined traditional craftmanship with modern technology when creating Osmose, a result of over 10 years of research and development, as well as feedback from world-class artists. With these new physical gestures, Osmose allows musicians to interact with sounds and produce music like never before. Each note can be articulated independently with unique expressive possibilities. The onboard sound engine was developed by Haken Audio and contains many types of digital synthesis, making it a workflow-oriented soundbox. There are a pair of 1/4" main outputs and two assignable pedal inputs, plus 5-pin DIN MIDI I/O and USB.

Key Features
  • Keybed: 49 full-size keys with three-dimensional control
  • Configurations: Standalone synthesizer, MPE MIDI Controller, and classic MIDI Controller
  • Sound Engine: EaganMatrix, a digital modular engine by Haken Audio
  • Polyphony: Up to 24 voices
  • Interface: Color LCD screen, pitch, and modulation sliders
  • Pedal Inputs: 2 continuous pedal inputs, assignable to sustain or synth parameters
  • MIDI: DIN MIDI In, MIDI Out/Thru, USB-B
  • Audio Output: Two ¼" TS pseudo balanced line outputs, ¼" TRS headphone output

 

The EaganMatrix Sound Engine
  • Offering new levels of expressivity required a seamless interaction between Osmose’s unique keybed mechanism and its sound engine. Logically, Expressive E has partnered with Haken Audio to integrate its powerful EaganMatrix sound engine with Osmose.
  • Its modular sound engine combines many types of digital synthesis (including physical modeling, FM, and more), making it a workflow-oriented soundbox. Osmose ships with more than 500 presets, and each of them has been manually customized with efficient macros that open new realms of sound exploration.
A Playful Playing Experience
  • All the internal sounds in Osmose’s large library are tailor-made to take advantage of its unique keybed. Osmose’s unique sound identity is a combination of highly detailed acoustic, electronic, and hybrid sounds that will easily add nuances and variations to any music genre.
  • These sounds were carefully crafted to react to a player’s slightest movements and make use of the keys’ three-dimensional sensitivity in a unique way to create effects such as strummed notes, vibrato, legato, layered dynamics, and much more. As a result, discovering and controlling Osmose is refreshing and fun.
Built to Empower External Synthesizers
On top of being a traditional MIDI keyboard controller, Osmose can interface with computers and other instruments as an MPE MIDI controller. It also offers polyphonic aftertouch support, a Multichannel MIDI mode, and global pitch bend. All of these changes can be made directly from the Osmose interface, with no need for a computer.
UPC: 818251020209

EXPRESSIVE E Osmose Specs

Key Specs
Sound Generation
Digital
Keyboard
49 Full-Size Keys with Synth Action
Touch Sensitivity
5 Levels of Sensitivity
Expression Controls
2x Slider
Number of Sounds, Kits, or Samples
500x Factory Sound Preset
Maximum Polyphony
24 Voice (Stereo)
Performance Functions
Arpeggiator
Audio I/O
2x 1/4" TS Balanced Stereo Line Output (1 Stereo Pair)
Pedal Support
2x 1/4" Assignable/Expression/Sustain
MIDI I/O
1x DIN 5-Pin Input
1x DIN 5-Pin Output
USB I/O
1x USB-B (Host Connection)
General
Item Type
Keyboard Synth
Sound Generation
Digital
Keyboard
49 Full-Size Keys with Synth Action
Touch Sensitivity
5 Levels of Sensitivity
Aftertouch
Polyphonic Aftertouch (Destination Assignable)
Expression Controls
2x Slider
Display
Color LCD
Sounds
Number of Sounds, Kits, or Samples
500x Factory Sound Preset
Maximum Polyphony
24 Voice (Stereo)
Multitimbrality
1-Part (Monotimbral)
Built-In Effects
11x Multi-Effect: Auto-Pan, Band-Pass Filter, Chorus, Distortion, HPF, LPF, Phaser, Ring Modulator, Tremolo
Performance Functions
Arpeggiator
Built-In Speaker
No
Synthesis
Glide/Portamento
Yes
Sequencing & Recording
Sequencer
No
Arpeggiator
Yes
Connectivity
Audio I/O
2x 1/4" TS Balanced Stereo Line Output (1 Stereo Pair)
Pedal Support
2x 1/4" Assignable/Expression/Sustain
MIDI I/O
1x DIN 5-Pin Input
1x DIN 5-Pin Output
CV/Gate I/O
No
Patch Points
No
Sync I/O
No
Network I/O
No
USB I/O
1x USB-B (Host Connection)
Media/Memory Card Slot
No
Bluetooth
No
Compatibility
OS Compatibility
macOS 10.11 or Later / Windows 8 or Later
OS Compatibility
macOS 10.11.6 or Later
macOS 11 or Later
Windows 8
Windows 10
Included Software
No
Mobile App Compatible
No
RAM Requirements
4 GB, 8 GB Recommended
Processor Requirement
Mac:
Intel Core 2 Duo
Apple M1
PC:
Intel Core i5 or Better
AMD
Power
Power Requirements
AC/DC Power Adapter (Included)
AC Input Power
100 to 240 VAC, 50 / 60 Hz
AC/DC Power Adapter
12 VDC at 1.5 A (Included)
Physical
Color
Gray
Included Accessories
No
Dimensions
35.2 x 12.4 x 3.4" / 89.4 x 31.5 x 8.6 cm
Weight
18.4 lb / 8.3 kg
Packaging Info
Package Weight
25.2 lb
Box Dimensions (LxWxH)
40 x 16.75 x 8.25"

EXPRESSIVE E Osmose Reviews

Not great as a standalone instrument

By Jay
Rated 2 out of 5
Date: 2025-04-05

So first off I will say that it is a fantastic keyboard and has some awesome sounds. But it lacks a lot for a synth/standalone instrument. The eaganmatrix editor you’d have to use to create your own sounds is absolutely horrid. And the update procedure is also completely ridiculous IMO. And for the price this deserves to have a way to create your own sounds “on board” without a computer (which you can’t which for me was a bummer). Because once you have explored and played all the presets, the Osmose as a design synth is not there yet and takes a TON of potential off the table. So as a self contained instrument I would not recommend. For all the cool MPE features and expressive nature of the Osmose, it handicaps itself by not allowing users to create even more awesome sounds for it and by putting sound creation behind the eaganmatrix which is a horrible way to design sounds for any sane individual. Feels unfinished, so 2 stars as of right now until they make a proper sound editor or a way to create your own sounds on board.

Great MPE controller

By Dan
Rated 5 out of 5
Date: 2024-01-01

I’ve bought many expressive controllers through the years and been disappointed. Not with this one…. It’s great! The keys move like they are attached to rubber giving so much flexibility and control. It’s really a dream come true. This would not make a great substitute for a normal weighted piano action controller. Its too flexible for that. It’s like the difference between a violin and a guitar. So Osmose can go places only fretless or breath controllers could go before, but now in a polyphonic dimension adding a new level of control. I’m thrilled with it

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