images via this auction
"Built in 8 track sequencer on the Sirus/Polymorph tip. You can layer up to 4 sounds Built in samples are absolutely nutty, 303, 909, etc... It also functions as a great controller keyboard, just ask Kraftwerk This Raven Max is in great condition and 100% functional The Max expansion adds twice as much onboard samples and presets"
"Notice the picture of the manual: it does show the Quasimidi in the studio of Klaus Schulze. One of the R&D persons of Quasimidi is Jörg Schaaf (now Mr. Spectralis) is a friend to Klaus. So he drop in from time to time and showed Klaus the new Quasimidi stuff then. Klaus Schulze still uses a Quasimidi as his main keyboard in a drawer below the mixer and the computer displays.
Here are more pictures of Klaus studio with Quasimidi keyboard shown:
studio1.htm
studio5.htm
a502.htm
a601.htm"