
"The Roland S-50 was a futuristic looking black metal monolith with a fluorescent screen. It felt long and had 61 keys. Compare that with the measly cheap feeling two octave Oxygen 8 I use now! You could hook it up to an external monitor. I had mine hooked up to a 13″ green CRT poised on a three tier Ultimate Keyboard Rack. It also came with a digitizing tablet and pen similar to a Wacom tablet. This allowed you to draw waveforms but it was more gimmick than useful.
It was 4 part multitimbral and 16 voice polyphonic. It had a 3.5″ disc drive and 750k internal memory. You could sample at 12-bit at 15-30kHz."
Click here for the full post on the Roland S-50 on wire to the ear.