“For sale is a Roland Jupiter-8 synthesizer in excellent condition. This iconic analog synth has just been fully tested and is in perfect working order. All keys, sliders, and controls function flawlessly, delivering the rich, classic Roland sound that has made the Jupiter-8 a legend in the music world. The unit has been meticulously cared for in a smoke-free environment.” Click here to visit listing on eBay
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Roland Jupiter 8
“For sale is a rare Roland JP-8 with MD-8 Midi DCB Interface. This is a later 14-bit model and came from long-time original owner. It was hardly used over the years and kept in very nice condition. It’s in excellent shape with only minor signs of wear. It just got back from our tech with a full extensive servicing (details below). Plays beautifully and sounds incredible. If you have been waiting for just the right Jupiter 8 to come along, this is the one to own. Being in such clean shape it will make for a great investment, as it’s only likely to increase in value, plus considering it’s been serviced it will be in top operational condition on arrival.
“Roland Jupiter 8
“roland jupiter 8. Condition is Used.”
“There were 9 versions of the Jupiter-8 and this is version 1.
“I am the original owner of this Jupiter 8 since I bought it new in 1982. For 4 years, regular road use. Got a few small dents in the top panel by the back. After that, it was only in my studio. In 1994, I added a MIDI retrofit kit, which works great. Eventually, the power switch broke, and I couldn’t find a factory replacement. The Jupiter sat unused for 20 years. Finally, I turned it over to master electronic engineer, synth builder (and actual Rocket Scientist) Dave Hamara, who replaced the power supply and switch with a modern switch with removable cable. He also replaced every single capacitor in the entire unit, replaced the battery, reloaded the factory sounds, and completely calibrated the unit to factory specs. This comes with the MIDI retrofit user guide, and the service manual with calibration specs, as shown.
“ENCORE MIDI
“This is a superb and iconic much-loved synthesizer that I’ve had the pleasure of owning since purchase in 1998. Kept in same smoke free studio for 20 years,not moved, perfectly looked after.
“This is a Jupiter-8. You know what it is, you know what it sounds like.
“Up for sale is a vintage and rare Roland Jupiter 8 polyphonic analog synthesizer with 16 oscillators and 8 voices. This unit is in excellent condition and works perfectly. I encourage, if you are local, that you visit the keyboard face to face so that you may appreciate how well maintained the unit is prior to your purchase. Those who are not within geographical range will not be disappointed… The unit will be shipped fully insured to you packed with the best possible packing job available.” 
“For sale: Roland Jupiter 8 in excellent condition. Works perfectly. Nothing is touchy or acts oddly. Tested for hours before posting. Very stable. 14 bit DAC vs 12 bit DAC on the earlier, potentially tuning unstable units. This is a DCB bus unit (i suppose, technically, a JP-8 A). It also has basic MIDI.
“Not much to say – pictures say it all. The synth is in near mint condition – it is 9.9/10. Silkscreen graphics are glossy and without blemishes, face is free of scratches or nicks. Minor scuffs on the underside from moving/racking this beast. All sliders and pots are mechanically nice and smooth, few are little scratchy – but it is a 30y+ old synth and as such sold “as is”. It looks as gorgeous and pristine as can be – and you’ll be very happy with its shape and sound. I don’t think you will find one in condition like this one any time soon… or EVER. That is, unless you happen to find a new one in the box.”