Wroclaw, Poland
About this listing
IMPORTANT: A complete, unedited demonstration video showcasing every single function, slider, memory bank, and voice assignment mode of this exact unit can be viewed here: Offered here is an absolute museum-grade, "Closet Classic" Roland Jupiter-4 Compunicator in verified Excellent / Near Mint condition. This is a late-production Revision E unit (Serial Number 003729), featuring the highly desirable and thermally stable Roland IR3109 VCF integrated circuits (the same filter chips found in the legendary Jupiter-8).Here is the exact chronological history, technical service breakdown, and strict logistics for this incredible instrument:1. History ("Time Capsule" Condition)This synthesizer is an absolute anomaly on the vintage market. For the past 35 years, it sat completely unused, safely stored inside its original hardshell flight case on top of a wardrobe in a clean residential home. Because it was kept in stable, dry, climate-controlled room conditions, it completely escaped the typical fates of these units—there is zero UV fading on the control panel, zero rust, no dust buildup, and no moisture damage. The faceplate, sliders, pots, and keybed are in pristine condition with fully crisp, intact text markings. Only minor, entirely natural vintage wood character marks are present on the side panels.2. Professional Bench Service & CalibrationSince the instrument had been sitting dormant for over three decades, it was sent to a professional service technician for a complete preventative overhaul and laboratory check before listing. The following work has been executed:Power Supply Recapped: The old primary electrolytic filtering capacitors in the PSU section were replaced with brand-new, premium-grade components, entirely eliminating vintage AC hum and ripple.Thermal Maintenance: Fresh high-grade thermal paste was applied under the four heavy-duty power transistors on the external heatsinks to ensure optimal, long-term heat dissipation.+/- 15.2V Power Rail Symmetry Calibration: The internal voltage rails were calibrated to a perfect mirror symmetry of +15.2V and -15.2V. The negative rail trimmer was meticulously adjusted to match the positive rail reference. This strict symmetry provides a flawless operating point for the op-amps and voice boards, eliminating phase shifting, internal beating, or tuning drift. The oscillators track rock-solid across the keybed.Factory Voltage Conversion: The transformer primary taps were safely re-wired internally from 110V to native European 220V/240V operation, strictly following the official Roland factory Service Notes. No external step-down transformers are needed.3. Purchase & Collection – Local Pickup PreferredGiven the high collector value and immaculate condition of this 45-year-old analog masterpiece, local pickup in Szklarska Poręba, Poland, is highly preferred and welcome. You are invited to come down, test the synth thoroughly, go through all the functions, and hear its massive sound in person.4. Secure, Fully Insured Palletized ShippingIf local pickup is not possible, I provide an uncompromising, bulletproof shipping solution worldwide to comply fully with Reverb’s Seller Protection:Double-Boxing: The synthesizer will be locked inside its original hardshell case. The case will then be suspended inside a heavy-duty outer cardboard shipping box with a minimum of 5 cm (2 inches) of high-density bubble wrap / foam insulation protecting every single side.Half-Pallet Shipment: To completely bypass automated conveyor belts and drop risks at courier sorting hubs, the boxed instrument will be strapped and secured onto a rigid half-pallet. This forces the courier service to handle the shipment exclusively via manual pallet jacks or forklifts.Full Insurance: The shipment will be fully insured for the full purchase value of the transaction.Signature Required: Delivery will strictly require a direct adult signature upon receipt.Video Documentation: The entire process of final testing, protecting the sliders, double-boxing, and securing the box to the pallet will be filmed on video as irrefutable proof of the instrument's pristine condition prior to courier handover.5. Contact & InquiriesIf you need high-resolution macro photos of the boards, have additional technical questions, or want to discuss freight/logistics arrangements, feel free to reach out directly:Phone / SMS: +48 518 152 0326. Terms & Conditions (Private Sale - No Returns)Private Vintage Sale: This is a private sale of a vintage electronic instrument. The item is described with absolute accuracy and backed by technical documentation and video proof of operation.No Warranty / No Returns: Due to the vintage nature of 45-year-old analog electronics, the item is sold strictly as-is, with no commercial warranties, no refunds, and no returns accepted under EU law for private sellers. All sales are final.
Pricezł39,275.05
+ zł436.39 Shipping
