Reverb Listing Puts Rare Oberheim Matrix-12 Back in Spotlight

A freshly posted Oberheim Matrix-12 has put one of the most coveted analog polys back in the spotlight, but the $7,799.99 asking price is only the opening number. Harri’s Shop in Portland, Maine listed the 61-key, 12-voice synth with a road case and free shipping, and the page showed it had been posted just 4 minutes earlier. For a keyboard this large and this rare, the real cost is not just acquisition. It is inspection, transport, calibration, storage, and whatever repair work comes after the invoice clears.

The seller described the unit as in great physical condition, but also said it has not been fully gone through and should be assumed to need some service to get it perfect. That warning matters on a Matrix-12 because this is not a casual desktop buy. Harri’s Shop also said the synth can be shipped directly to the buyer or sent to a tech of the buyer’s choice for a full going-over, which is exactly the kind of planning serious buyers have to make when a flagship from the mid-1980s changes hands. A road case helps, but it also signals a machine that has already lived a working life, not one that has spent decades as a shelf queen.

Oberheim still frames the Matrix-12 as its “most ambitious and versatile synth,” and the spec sheet explains why. Its reputation rests on matrix modulation, virtual patching, a deep selection of filters and LFOs, and multi-part layering that gave it a scope few analog instruments could match. The Matrix-12 was produced in the mid-1980s, with reference sources placing the run from 1985 to 1988, and it sits alongside the keyboardless Xpander, which launched in 1984 and is widely described as essentially a six-voice version of the Matrix-12. That lineage keeps both instruments at the top end of the Oberheim story, where sound design depth and collector cachet travel together.

The market reflects that prestige, but also its maintenance burden. Reverb’s Matrix-12 product page includes an estimated value guide, and recent restored or fully serviced examples have carried materially higher prices than this unserviced listing. Reverb’s own maintenance coverage for classic synths makes the broader point plainly: vintage analogs often come with mechanical and service issues that can turn an exciting find into an expensive project. For buyers weighing a Matrix-12 in 2026, the question is no longer just whether the synth is rare. It is whether the premium for a named icon still makes sense once shipping, bench time, and long-term support are added up.