via this auction
"Jupiter 4!! Roland's first polyphonic synthesizer that kicked off the revolution of famous Jupiter and Juno synthesizers of the 80s. This lovely instrument sports that original 70s Roland synth look with the nice chunky design, shiny knobs and preset control panel below the keys, one of the later models with this aesthetic. The sound is nice and warm due to the VCOs but it is easy to see how Roland's other polysynths evolved from this point. The layout is very similar to the Junos with a simple but effective control scheme that is hard to make a bad sound with. Of course this is a very early computer controlled synthesizer as well, allowing saving of 8 user presets, compuphonic! Its truely an amazing experience playing the Jupiter 4. It is incredible sounding and such a breeze to program, don't forget the amazing ensemble effect and built in arpeggiator. The LFO can even reach up to audio rate allowing for some awesome polyphonic filter oscillator FM. Its easy to see why the Jupiter 4 is an absolute classic.
This Jupiter is in great shape for its age with normal wear and tear but no missing button caps, switches or knobs. It was recently serviced and tuned and is working just as it did 40 years ago. Message with any questions! Non-original vinyl cover included."
