Up for sale, an Expressive E Osmose 49-key polyphonic synthesizer in near-mint condition. The Osmose is a powerful, versatile standalone 24-voice instrument that offers FM, virtual analog, and physical modeling synthesis all under the same hood.

Unlike many early synths and controllers that were geared specifically towards MIDI Polyphonic Expression (MPE), the look and feel of the Osmose offer something for traditional piano players and modern synth artists alike. The 49 full-size keys have a premium, comfortable feel thanks to their matte finish, and their extended size allows for Expressive E’s Augmented Key Action (or, A.K.A.) technology to really shine, delivering nuanced real-time and after-touch responses alongside polyphonic pitch control.

Powered by the EaganMatrix MPE+ digital synth engine, the Osmose offers comprehensive expressive capability, enabling musicians of all backgrounds to get creative in how they experiment with dynamics and composition. Players have a bevy of gestures at their literal fingertips with which to manipulate sound, from pitch bending to portamento glides, strums, shakes, and more. The Osmose can also be used as a controller for both MPE-enabled soft synths via USB and for hardware synths via 5-pin connection, making it an indispensable performance and production tool.

All functions and features of this Osmose polyphonic synthesizer operate as intended. The 4.1” LCD control screen still has its protective factory film intact. Cosmetic wear is limited to some minor marks on one edge. A 12V 1.5A power supply is included.