MATRIXSYNTH

Tuesday, March 24, 2026

Roland System 700 SN 550082

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via this Vemia listing

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"This is a unique opportunity to buy a monster synth, that is also a piece of synth pop history. Two cabinets plus the original keyboard, all lids, interconnection cables and original manual included. The first cabinet is a Roland System-700 Lab is one of the rarest and most sought-after modular synthesizers ever built.
Introduced in 1976 as part of Roland’s legendary System-700 series, the Lab version was designed as a compact, self-contained modular laboratory for advanced sound design, research, and education — but with the same discrete analog circuitry, massive sound, and build quality as the full studio system.

This one was owned by Bill Vorn, keyboardist of the synth-pop band Rational Youth, used in the following albums dated 1981 to 1983 : Rational Youth, Saturdays in Silesia, City of Night and I want to see the light, as reported in the certification signed by Bill Vorn himself, provided in the item. The second one is another original SYS 700 one, connected and internally cabled to the main one by means of the original cable, with the super rare modules that you see in the picture: an additional, multimode filter, the great output module and… a professionally custom module with a perfect ARP 2600 VCF clone… plus other stuff.

All the best Sys 700 modules, featuring the iconic vintage Roland tone — warm and incredibly dynamic — and offers an extraordinary range of sonic possibilities thanks to its flexible patch architecture. Perfect for collectors, professional studios, or synth enthusiasts looking for a centerpiece instrument with historical and musical significance. The system sports a comprehensive modular architecture with 3 oscillators, 2 filters, 2 VCAs, 6 envelopes (!), mixer, phaser, spring reverb (HUGE) and …utilities.

Legendary System-700 sound — powerful basses, evolving textures, experimental tones. What to say more? Fully functional and in very good cosmetic condition with minor signs of use. You will never find another in such condition. Last call…"

Oberheim Four Voice

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via this Vemia listing

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"For sale is a super rare Oberheim 4-voice. It's in stunning condition and in perfect working order. Has been completely serviced and mains power has been replaced with a low noise toroidal. No money has been spared to give it a full check-up."

Big Briar Signature Series Etherwave Theremin SN MSS667

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via this Vemia listing

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"An original Big Briar Bob Moog Signature Series Etherwave Plus Theremin. I purchased this unit new in 2000 (as shown in the picture of the Certificate of Authenticity). I returned it to Moog sometime in the 2000's for the 'Plus' upgrade that added CV outputs for Pitch and Volume as well as a Gate output. It is fully functional and has spent its life in my smoke-free home studio. It includes the power supply, manuals, and a Moog Theremin gig bag. I have the original box, but it has seen better days. I can include it if the buyer desires."

Moog Source Analog Keyboard Synthesizer SN 3297

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Oberheim Matrix 1000 Rackmount Analog Synthesizer

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SEQUENTIAL OB-6 SYNTHESIZER

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We say...
A pre-owned Sequential OB-6 Desktop in very good condition. It has a few dings to the wooden side cheeks. The outer packaging is slightly worn but original and it comes with the power supply and manual

Manufacturer's description
Classic Oberheim Sound — Made Portable
The OB-6® desktop module is just as powerful and easy to use as its counterpart, the OB-6 Keyboard. The module has all of the same controls as the keyboard version and provides the same immediacy and ease of use. As with the OB-6 Keyboard, all parameters are at your fingertips, with full-sized knobs and switches and a comfortable, intuitive layout.

How does it sound? Massive — just like the keyboard, because on the inside, it’s exactly the same. The same analog signal path with discrete VCOs and VCFs. The same high-quality digital effects. The same classic Oberheim sound that has been earning raves from musicians around the world.

ELEKTRON OCTATRACK MK2 SEQUENCER & SAMPLER

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We say...
A pre-owned Elektron Octatrack MK2 in very good condition. It appears to have been originally sold as a b-stock unit. It has all original packaging and accessories.

Manufacturer's description
With the Octatrack MKII, discovering the perfect sample is only the beginning. Twist it, distort it, and carve it into something that is truly yours. Dynamic in name and nature: this is the ultimate sampler for recording sessions, creative kick-starts, and improvisational performances. A stereo sampler, looper, arranger, mixing and effects hub, workstation, performance instrument: you name it. Its power scales and evolves with you during your musical journey.

The Octatrack MKII redefines how you transform your sounds, as well as how you interact and play with them. It is a stereo sampler, processor, and live looper with a powerful sequencer and workstation workflow on top. Choose between several custom machines – static, flex, thru, neighbor, pickup – to suit your sample recording, manipulation, and effects processing needs for each of the eight tracks.

ELEKTRON MODEL:CYCLES SIX TRACK FM GROOVEBOX

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"We say...
A pre-owned Elektron Model:Cycles in very good condition. It has no original packaging but comes with its USB cable and power supply

Manufacturer's description

Scale angles dense and jagged, glide over plains vast and fluid or sink into mists of dissonance. To model is to shape the formless. Model:Cycles is a six-track FM-based groovebox that brings exploring into the heart of sound sculpting. With six unique machines in one lightweight unit, you can effortlessly mold rhythm and melody across the digital spectrum using instant, tactile controls. Exploration made attainable.

The six machines of the digital FM engine cover both percussive and melodic synths, allowing you to make full, varied compositions. The four core synth controls put the tools of sound sculpting right in front of you, altering the behavior of each machine differently and letting you push them to the limit. Every sound has a start, where will you take it?

Access Virus TI2 w/ Original Box & Manual

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via this eBay listing

Roland SH-1 32-Key Synthesizer w/ Case

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via this eBay listing

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