via this auction.Details: "Early 80’s vintage. Although designed essentially as a guitar synthesizer, this unit can also use a control signal from trumpet, saxophone, and other instruments. Until the X-911, guitar synthesizers have had a reputation for poor operation and an inability to take full advantage of the guitar's expressive potential. This unit is as easy to use as any effects device, yet will produce extremely complex sonic variations. No special guitar pickup is required. Just patch your guitar, microphone, or other instrument into the X-911 and play one note at a time. Simple pushbuttons on the front panel let you choose five different instrumental sounds including bass, trumpet, and flute, along with five synthesizer waveforms which can be varied freely to get a wide range of different effects. Any or all of these may be mixed together to produce 2047 different tone color combinations. Also, you can use a foot switch to instantly raise or lower the X-911's pitch an octave above or below the guitar pitch. You can play in unison with yourself with two lead lines a third or fifth apart. Footswitches can also be used for instant switching of effects such as portamento and hold. There are even rear panel jacks for interfacing with other synthesizers such as the compact Korg MS-series to add even greater sound synthesis capability."
via Johan
Update: Better pics of the unit here.
via Joe.
