I got a used Osmose yesterday for 1150€. After a day of fiddling (got both connected via DIN) the Hapax records sounds over MPE but plays back a staccato of notes instead of one long swelling note, it does the same when trying pitch bends.
I didn’t manage to do a program change over Midi yet, neither with the Hapax nor with a Faderfox EC4, even though I downloaded the “Osmose Cookbook” by R. Kram and tried channels 1, 2 and 16 for Bank Select and Program Change.
There are quite good videos by Chris Hans from Expressive E that explain how to get things right with Ableton: the trick is that some signals only work over USB coming from and going to the Harken Engine on USB Part 2. But when I used a MIO XL to select that part 2 to send it to the Hapax, I still only got stutter when playing back what used to be a long note.
Nevertheless, I am happy with the Osmose: nearly every preset gives me instantly an idea for a new song - though most of them are more of the “Game/Movie-Soundtrack Hans Zimmer”-kind. What helps is that I’m considering the Osmose a very large, extremely well done, sensitive and responsibe ROMpler or sample library - like an EMU Orbit 9090 or Korg M3 for example. For me, it’s NOT a classic synth where I can twiddle some knobs and it does weird shit. As long as you accept that (and forego MIDI support for the time being), you’ll be very happy with the Osmose.