Thank You macStuff for reply.
That was my first post, and i am new here. I did't know, that OSX stuff is "persona non grata" here.
Yes, later QEMU versions are capable to run even os9
On windows, the setup is very easy, but miss some very important features, for example: the USB passthrough which is a must if you want to use any real USB audio hardware. (including MIDI adapters)
Since Unisyn is only for MIDI, its needs of resources are low, so can be run well in emulated environment.
It is sad, to hear, that the SDK is also rare. AFAIK, MOTU is not making money of Unisyn anymore, so that would be a logical and wise decision to open this stuff to public
Thank You!