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via this auction
Additional Tone Tweakers Listings, also on Reverb
"This unit was disassembled. Old brittle and cracked neopren dust protectors were replaced with new ones, the left side plastic was broken on the inside and was glued, and a defective fader was opened up, cleaned and repaired. This work took 2 hours of skilled vintage synth tech labor, which is super fast as far as vintage gear servicing goes."
Tuesday, March 14, 2023
OBERHEIM MATRIX 12 SN P51202
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via this auction
"One of the fattest, roundest, pleasantly analog synthesizers around! It's long been known for creating some of the thickest and best analog pads, sweeps, buzzes, basses and textures. It features Matrix Modulation for extremely wild virtual patching for almost unlimited range of sounds and modulation capabilities!
Matrix 12 is much fatter and more programmable than either. Every control can have an effect on some other parameter thanks to Oberheim's flexible design. For example, there are 15 types of LFOs and VCAs per voice! And there's plenty of diagrams drawn out on the front panel of the synth to help you figure out some signal routing. This is not a synth for the beginner."
via this auction
"One of the fattest, roundest, pleasantly analog synthesizers around! It's long been known for creating some of the thickest and best analog pads, sweeps, buzzes, basses and textures. It features Matrix Modulation for extremely wild virtual patching for almost unlimited range of sounds and modulation capabilities!
Matrix 12 is much fatter and more programmable than either. Every control can have an effect on some other parameter thanks to Oberheim's flexible design. For example, there are 15 types of LFOs and VCAs per voice! And there's plenty of diagrams drawn out on the front panel of the synth to help you figure out some signal routing. This is not a synth for the beginner."
1981 Moog Prodigy 32-Key Monophonic Analog Synthesiser
PEARL SC-40 8Ch Hybrid Drum Percussion Synthesizer SN 100487
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via this auction
"The SC-40 is an extremely rare and fantastic flagship drum synthesizer that provides powerful hybrid drum synthesis with unique waveforms and analog filters.
The SC-40 can be controlled using MIDI signals and 8 drum trigger pad signals.
It's also possible to trigger it using EURORACK modular trigger signals.
Please note that this unit is designed for 100 Voltage and you may require a voltage converter to use it.
Description
DWAP Synthesis (Digital Wave Analog Process)
Waveform: 32 waveforms and Noise
2WG, 4VCF(LP x 2, HP x 2), 4EG per 1 Voice
Polyphony: 4 Voices
Program Memory: 8 Pads x 32 or 16 Pads x16
Preset Tone: 128
Pad Input: 8
Output: Mixed Out(L. R), 8 Indivisual Out, Phone
MIDI: In. Out, Thru"
via this auction

The SC-40 can be controlled using MIDI signals and 8 drum trigger pad signals.
It's also possible to trigger it using EURORACK modular trigger signals.
Please note that this unit is designed for 100 Voltage and you may require a voltage converter to use it.
Description
DWAP Synthesis (Digital Wave Analog Process)
Waveform: 32 waveforms and Noise
2WG, 4VCF(LP x 2, HP x 2), 4EG per 1 Voice
Polyphony: 4 Voices
Program Memory: 8 Pads x 32 or 16 Pads x16
Preset Tone: 128
Pad Input: 8
Output: Mixed Out(L. R), 8 Indivisual Out, Phone
MIDI: In. Out, Thru"
Yamaha CS-50 SN 1954 w/ MIDI Mod
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via this auction
"Yamaha CS50, fitted with a working fully responsive Kenton Midi Kit. It’s been worked on by the legendary EARS studio, and has been kept in my professional music studio without touring since I’ve owned it for the past 10 years. This particular instrument has been used on the Rapture DFA records, to my own work on Netflix and more."
via this auction
"Yamaha CS50, fitted with a working fully responsive Kenton Midi Kit. It’s been worked on by the legendary EARS studio, and has been kept in my professional music studio without touring since I’ve owned it for the past 10 years. This particular instrument has been used on the Rapture DFA records, to my own work on Netflix and more."
Roland Jupiter 6
Roland Juno-106 near mint w/ Original Box
EMS VCS3 Synth - Pro Serviced
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via this auction
"EMS VCS3 MK2 in beautiful condition.
Pro Serviced by EMS expert Constantin (Portabellabz)."
via this auction
"EMS VCS3 MK2 in beautiful condition.
Pro Serviced by EMS expert Constantin (Portabellabz)."
Buchla Easel Command Standalone Desktop Synthesizer with MIDI and CV Control SN 0785 0830
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via this auction
"Mint Buchla Easel Command with USB Host USB-A option installed. This option allows a user to plug most USB controllers directly into the Easel. This comes with many extra patch cords, BU-RPC retro program card, power supply, quick start guide and original box."
via this auction
"Mint Buchla Easel Command with USB Host USB-A option installed. This option allows a user to plug most USB controllers directly into the Easel. This comes with many extra patch cords, BU-RPC retro program card, power supply, quick start guide and original box."
Waldorf Microwave Rackmount Wavetable Synthesizer SN 300577
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH