MATRIXSYNTH: Oberheim Xpander 6-Voice Synthesizer [US Version] w/ Flight Case SN G43214

Saturday, June 27, 2026

Oberheim Xpander 6-Voice Synthesizer [US Version] w/ Flight Case SN G43214

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via this Reverb listing

"Legendary Oberheim Xpander 6-Voice Synthesizer desktop module. This is the highly sought-after US Version (with jack labels printed ABOVE the jacks).

[Condition & Operation]

* Operation: Great working condition via MIDI. I have confirmed that the unit receives MIDI and plays audio correctly from both the main outputs and the individual voice outputs (tested and confirmed working via DIR mode).

* Tuning / Calibration: All 6 voices successfully pass the auto-tuning (ALL PASS) without requiring a long warm-up period. As with many vintage Xpanders, the tuning can be sensitive to temperature and may occasionally show a minor FAIL, but it clears and passes successfully once warmed up.

* Buttons & Knobs: All buttons and knobs respond and work. Please note that due to its vintage age, a few buttons may occasionally have a slightly slow response or require a firm press, but they all register properly.

* Display: The VFD display is clear and fully readable. There might be minor cosmetic or pixel imperfections due to age, but it does not affect readability at all during operation.


[Notes & Details]

* Power Voltage Note: The rear panel indicates multi-voltage support (95-130V / 190-260V). However, I have ONLY used and tested this unit in a 115V/117V environment (Japan/US). I have NOT tested it under 240V power. International buyers in 240V regions (Europe, UK, Australia) are strictly responsible for checking the internal voltage selectors/fuses before powering it on. Any damage caused by voltage switching or improper power connection is entirely at the buyer's risk.

* CV / Gate I/O: Untested (I do not have the equipment to test the CV/Gate jacks, but MIDI and all internal functions work perfectly).

* Maintenance History: This unit has a history of being professionally serviced and maintained multiple times at a specialized synthesizer shop up until about 15 years ago. While it hasn’t been serviced recently, it has been kept in a good studio environment.

* Cable Hot-Plugging Note: Please make sure to power off the unit when plugging or unplugging cables from the back panel. Leaving the power ON during cable changes can cause static noise that triggers a random patch change. This is a typical behavior of vintage Xpanders and not a defect.

* Cosmetics: There is some cosmetic wear due to its age, including a small chip on the wooden side panel (please see the close-up photos for exact details).

* Flight Case: A custom hard flight case is included. Please note that the case is cosmetically worn/beat-up, but it is structurally solid and will serve as excellent protection during transit."

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