MATRIXSYNTH


Monday, July 21, 2025

1978 RSF Kobol

Note: Auction links are affiliate links for which the site may be compensated.


via this Reverb listing

"Here is a rare occasion to buy a RSF Kobol and in full working condition. Internal battery has been replaced. Cosmetic condition as per the pictures, close to excellent apart from the cracks due to its age. It comes with its original paper manual (not in the pictures). The RSF Kobol is one of the very best vintage monophonic synths ever designed with its distinctive powerful and precise sound and one of the sexiest User Interface ever designed. Plus it has 16 memory slots and the ability to sequence these slots making it one of the most powerful sequencers of its time. You can trigger it from any 5V clock (eurorack standard).

In addition to the original paper manual this Kobol also comes with a very sturdy, very heavy (27 kgs !!) custom wooden box with foam inside, however you can have the it shipped without the case if you prefer so, since the case alone weighs more than twice the synth itself!"

Sequential Circuits PROPHET 10 Rev3 Dual Manual 10-Voice Polyphonic Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.


via this Reverb listing

"The rare flagship holy grail of all Sequential Circuits synths!

The mighty dual manual PROPHET 10!

Priced right to sell quickly, the Prophet 10 is literally TWO Prophet 5's in one synth with extra abilities such as layering, bi-timbrallity, alternating notes between upper and lower voices etc.

This rarely seen monster analog synth is by far one of the fattest and nicest vintage synthesizers. The Prophet 10 is simply two glorious Prophet 5 synthesizers stacked together. That gives 10 voices with 20 of Sequential's unique analog VCO oscillators at 2 per voice for a big fat analog dream!

20 oscillators (2 per voice), 10 voices, 2 independent 61 note keyboards and all the great sounds and editing facilities as the Prophet 5! Built in Tuning tones and Auto-Tuning functions help make sure you won't go out of tune. And top notch circuitry and design prevent overheating. Multiple keyboard modes allow for true flexibility for different performance / voicing needs! The Prophet 10 is a truly fat and classic analog instrument.

This synth has been fully serviced, recapped including the tantalum caps, restored and has Wine Country Sequential's MIDI added! Even the front panel nameplate is in perfect condition which is rare on these. The sequencer works as it should too, although I never really used it but I have played around with it. I do not know if the micro-cassette tape drive works, I dont have any tapes and have never tried it.
The synth will be well packed and shipped in a new custom made road case, Local pickup in San Antonio, TX can be arranged. There are no returns or refunds on this item.

Dual Manual: The Prophet-10 has two keyboards, 5-octaves each, allowing for independent performance or layering of sounds.

Bi-timbral Operation: This feature allows the user to play two different sounds (programs) simultaneously, either layered on top of each other or split across the two keyboards.

Two Prophet-5's in One: Essentially, the Prophet-10 was designed as a dual-version of the Prophet-5, offering double the voices and the ability to combine sounds in unique ways.

Voice Allocation: Each manual controls five voices of the ten-voice synthesizer. When using the bi-timbral mode, each program gets its own five voices.

Applications: This allows for creating thick, layered pads, split keyboard performances with bass on one manual and leads on the other, or any combination of sounds from the two synthesizer banks."

90s Era Moog Modular 9501, 9502, & 9505 Modules

Note: Auction links are affiliate links for which the site may be compensated.


9501 VCO via these eBay listings

These appear to be Don Martin Moog modules. He owned the trademark in the US for a period of time before it went back to Bob Moog. He also made a Minimoog which became known as the Donimoog. Alex Winter owned the rights to Moog in the 90s in the UK, and produced the "Welsh Minimoog".

Descriptions from the listings:

"This listing is for one Moog Modular 9501 VCO module. This module is from the brief period of time Moog modules were being remade in the 90's. Check out the pictures to see the quality; this module looks to be missing a couple of the socketed components and a resistor (plus a few of the switches need to be soldered). I am unsure of the functionality as I do not own a Moog Modular to test it with but in general it looks great. The module still has plastic on the front panel. This module is sold untested and as-is."

"This listing is for one Moog Modular 9505 Reverberation Unit module. This module is from the brief period of time Moog modules were being remade in the 90's. Check out the pictures to see the state of the module. I am unsure of the functionality as I do not own a Moog Modular to test it with but in general it looks great. The module still has plastic on the front panel. This module is sold untested and as-is. "

"This listing is for one Moog Modular 9502 VCA module. This module is from the brief period of time Moog modules were being remade in the 90's. Check out the pictures to see the state of the module. I am unsure of the functionality as I do not own a Moog Modular to test it with but in general it looks great. The module still has plastic on the front panel. This module is sold untested and as-is."

Roland PG-300 Synthesizer Programmer w/ Original Box SN 724987

Note: Auction links are affiliate links for which the site may be compensated.


via this Reverb listing

"This controls the Alpha Juno 1, 2 and MKS-50 synthesizers. It offers complete control over all editable parameters in an easy to use, well designed controller. Uses a standard Midi cable."

Donner Music's Essential L1| Monophonic Analog Synthesizer Promo Video


video upload by Donner Music

"🎹 Introducing the Donner Essential L1 –Reimagining The Classic
Inspired by iconic monophonic subtractive synths, the L1 features a powerful 3340 VCO, 3109 low-pass filter, and 662 VCA, delivering incredible bass, lead, and more. Plus, experience the innovative Snap2Connect (S2C) System – connect supported devices like the KB-32M keyboard (sold separately) wirelessly with strong magnets, no cables needed. Desktop or keyboard? Swap interfaces effortlessly and elevate your sound! 🔥 "

Donner Essential L1 Sound Exploration through the ARP


video upload by Molten Music Technology

"The Donner L1 is an SH-101 inspired synth that has a nicely creative ARP that took me on a journey through the sound possibilities. It's running through the Bopp & Steve reverb for a bit of ambience."

Novation Circuit Rhythm Editor - VST and Standalone Version


video upload by mller30161

Editor Homepage: https://circuit-midi-editor.jimdo.com


"The 'Circuit Rhythm Editor' is a VST / Standalone - Controller for the Novation "Circuit Rhythm" sampler and drum machine.

Editor Features:

It is perfect to integrate the Circuit Rhythm into your DAW.

You can control and mixing the Sessions, change and create new sounds "on the fly".- It provides a simple access to all important parameters.

The Plug-In allows you to set the hardware easily and automated the controller movement from the DAW, they can be stored in your Project.- With the X-Y-Pad any controller can be selected and controlled.

You have an overview of all 8 tracks.

The parameter can be changed on the 'Circuit Rhythm Editor', and stored on Circuit Rhythm Hardware.


The Editor are available for:

PC: As VST2 and Standalone for 32bit and VST2, VST3 and Standalone for 64bit Windows.

MAC: As VST2, VST3, AU and Standalone, compatible with MAC Intel and Silicon."

AURA Plugins Waldorf Blofeld Editor


Setup and Configure video upload by AURA Plugins



via AURA Plugins

"Waldorf Blofeld Editor & Librarian is designed to control your Waldorf Blofeld right from your DAW. With our Editor, you can work with your Waldorf Blofeld by the same way you use your virtual instrument plug-ins. Our Editor will recall your patch settings when you open your project and the data will be sent to your Blofeld automatically once you open your project. Your synthesizer is always synchronized with your session! The only thing you need to worry, is that you power-up your synthesizer. We also added the ability to load in Waldorf microQ and Q patches! (WHAT? Yes!)

Faster workflow

Waldorf Blofeld Editor brings hardware integration to modern Digital Audio Workstation environments. Waldorf Blofeld Editor & Librarian plug-in works seamlessly with all Waldorf Blofeld Keyboard / Waldorf Blofeld Desktop synthesizers.

It is now much faster to scroll thru sounds and make tweaks within your DAW. Automate parameters with real hardware control names. The best part is, our Editor saves all the data within the project and when you reopen the project, all of the used data gets sent to your hardware, automatically! No more waiting with loading or transferring hardware data. Save time – welcome Total Recall.

Control Waldorf Blofeld desktop / Blofeld Keyboard synthesizer directly from your DAW.

Automate almost every parameter directly from your DAW.

No need to remember CC’s for each knobs / per synthesizer. Goodbye sticky notes!

Load, Edit and Store patches into hardware memory or in your HDD personal library.

Store any Waldorf microQ / Q / Blofeld compatible soundset in your HDD library folder and browse it from our plugin.

Send banks or individual patches from librarian to hardware.

Request banks or individual patches from hardware to librarian.

Total Recall: When you reopen your project, all of the data used in it, will be sent to the hardware, automatically!"

Korg PS-3100.... thru Boss echo & Yamaha reverb...


video upload by noddyspuncture

Elta TSC12 Touch Sensitive Controller | From Solar 42F drone ambient machine


video upload by Cinematic Laboratory

"The Elta TSC12 Touch Sensitive Controller may remind you of the SOLAR 42F Drone Ambient Machine, the multi VCO-desktop synth. Obviously, the TSC12 is only the touch panel which can control a a single voice with V/OCT and pressure, two voices with dual V/OCT, or a split cofiguration with voice and an arpeggiator or sequencer. The TSC12 supports easy note configuration for 12 keys where you can pick any note from any octave. It also supports default- and user scales. Even though the TSC12 is simple to use, it allows you to create really complex and expressive patches through human interaction, combined with sequenced or arped automation. Obviously it's great for playing live drones and ambient music, but you'll need to build your own SOLAR case layout."
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