Selling a Jupiter-4 from my personal collection that has been serviced within a week of being listed. Service includes:

  • Full recap using Nichicon VR-series capacitors
  • New, upgraded power/pass transistors in the PSU
  • New 50KB sliders made by Double Heart Audio Repair
  • New keybed felts
  • Freshly flashed EPROMs
  • IR3109-version filters
  • Full calibration
  • A Swan hard case with wheels is included.

I can install a Hamburg Wave MIDI kit at the buyer’s request for an additional $500, including parts. Installation will be performed after payment is received.

Playing condition is Excellent. Note the wear, signs of use, and vintage nature of the instrument in the photos.

This synth belongs to a professional technician. An FYI: Don’t be fooled by the term “serviced” unless the service is specifically detailed in the description. I service vintage synthesizers and pro audio equipment for a living, and I personally performed all of the work described above.

Feel free to ask any questions or get an exact shipping quote to your location.

Looking for vintage synth or pro audio repair? Send us a message.

Listed8 days ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • Jupiter 4 49-Key Synthesizer
Finish
  • Black
Categories
Year
  • 1978 - 1982
Number of Keys
  • 49 Keys
Keyboard Action
  • Synth Action
Analog / Digital
  • Analog
Key Size
  • Full Size
Polyphony
  • 4 Voices

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Double Heart Audio Repair

Austin, TX, United States
Joined Reverb:2022

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