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via this listing
Additional Three Wave Music Listings
"Moog Prodigy in excellent condition. Tested and confirmed to function. Includes OEM gig bag(see photos)
The Moog Prodigy was a monophonic analogue synthesizer produced by Moog Music from 1979 to 1984."
Thursday, February 20, 2025
Rare Simmons SDS-6 Vintage Sequencer
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via this listing
"Here's your shot at one of the rarest drum sequencers ever - the Simmons SDS-6!
A super sought-after vintage piece!
Only about 100-150 made and just a few still around.
This 80s legend is a powerhouse with polyphonic sequencing, letting you trigger multiple sounds at once for killer rhythms.
Works with any modular synth with a trigger interface and if you're after a full Simmons setup"
via this listing
"Here's your shot at one of the rarest drum sequencers ever - the Simmons SDS-6!
A super sought-after vintage piece!
Only about 100-150 made and just a few still around.
This 80s legend is a powerhouse with polyphonic sequencing, letting you trigger multiple sounds at once for killer rhythms.
Works with any modular synth with a trigger interface and if you're after a full Simmons setup"
Vintage Sequential Prophet 10 Rev3
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via this listing
"This is an original Prophet-10 Rev 3 in all its analog glory! Finding one in great shape like this is a rare treat.
The Prophet-10 builds on the legendary Prophet-5 technology, offering endless creative possibilities. With its dual polyphony and two keyboards, this bad boy takes your sound to another level.
The real kicker? The 16-step sequencer! While we disabled it in this unit to improve stability you can still control the sequencer completely via MIDI and that’s actually a massive upgrade - You get all the creative power of the sequencer, but now with perfect sync to your other gear and the reliability of modern MIDI control.
This is a true collector’s item that still delivers that classic analog sound that made Sequential Circuits famous. So don’t miss out on this rare piece of history – it won’t be around for long."
via this listing
"This is an original Prophet-10 Rev 3 in all its analog glory! Finding one in great shape like this is a rare treat.
The Prophet-10 builds on the legendary Prophet-5 technology, offering endless creative possibilities. With its dual polyphony and two keyboards, this bad boy takes your sound to another level.
The real kicker? The 16-step sequencer! While we disabled it in this unit to improve stability you can still control the sequencer completely via MIDI and that’s actually a massive upgrade - You get all the creative power of the sequencer, but now with perfect sync to your other gear and the reliability of modern MIDI control.
This is a true collector’s item that still delivers that classic analog sound that made Sequential Circuits famous. So don’t miss out on this rare piece of history – it won’t be around for long."
Moog Sonic Six
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via this listing
"Deeply serviced & tested. Working flawlessly as always.
Minor signs of usage. Please see the pictures."
via this listing
"Deeply serviced & tested. Working flawlessly as always.
Minor signs of usage. Please see the pictures."
RSF Kobol »French Minimoog« rare vintage synthesizer
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via this listing
"Only around 200 units were built in the '70s and maybe only 50 are left - probably less.
The unit is all original with big knobs (hell yes!) and a sequencer that steps through presets, not notes!"
via this listing
"Only around 200 units were built in the '70s and maybe only 50 are left - probably less.
The unit is all original with big knobs (hell yes!) and a sequencer that steps through presets, not notes!"
EMS Synthi AKS MK2
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via this listing
"The Mk2 version has more stable oscillators."
via this listing
"The Mk2 version has more stable oscillators."
Korg PS-3100 Polyphonic Synthesizer
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via this listing
"The KORG PS-3100 is a classic analog polyphonic synthesizer with 32-voice polyphony and rich, evolving tones. Its three oscillators and 12dB/oct filter create lush sounds, while the built-in reverb adds immersive depth. Perfect for everything from warm pads to sharp leads, this synth brings vintage analog warmth to any setup."
via this listing
"The KORG PS-3100 is a classic analog polyphonic synthesizer with 32-voice polyphony and rich, evolving tones. Its three oscillators and 12dB/oct filter create lush sounds, while the built-in reverb adds immersive depth. Perfect for everything from warm pads to sharp leads, this synth brings vintage analog warmth to any setup."
Oberheim OB-Mx Rackmount 2-Voice Synthesizer SN MX001073
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via this listing
"The OB-Mx is an all-analog synthesizer module with a user-friendly interface, offering classic Oberheim and Minimoog sounds, along with full programmability and MIDI compatibility. Designed by Don Buchla, it’s the last synthesizer he created, though it has been criticized for its underwhelming filters, which fail to replicate the iconic Oberheim and Moog sounds. Despite this, it remains a versatile tool for sound creation with 12 dB/oct and 24 dB/oct low-pass filters."
via this listing
"The OB-Mx is an all-analog synthesizer module with a user-friendly interface, offering classic Oberheim and Minimoog sounds, along with full programmability and MIDI compatibility. Designed by Don Buchla, it’s the last synthesizer he created, though it has been criticized for its underwhelming filters, which fail to replicate the iconic Oberheim and Moog sounds. Despite this, it remains a versatile tool for sound creation with 12 dB/oct and 24 dB/oct low-pass filters."
Waldorf Pulse Plus+ 2.01 SN 830321381
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via this listing
"Waldorf Pulse Plus in beautiful condition.
It is a late unit, clean, fully responsive, sounds like a beast.
Ideal for collectors or studios that care about gear.
The Plus is the best and most sought-after version of the original Waldorf Pulse.
The differences between the regular Pulse and the Pulse Plus are remarkable, and turn the Plus into a Swiss army knife for modern studios:
MIDI to CV/Gate converter with two CV signals.
It can interface different brands of synths and modules by selecting different voltages, and use the extensive modulation matrix on the CV signals.
CV/Gate inputs to control the Pulse with a modular or from other CV/Gate synths or controllers
External Audio Input to the filter, which is the best version (moog ladder type) of the 24dB LP filter in Waldorf 4Pole "Miniworks".
If you do not know, the Pulse is a serious vintage synth that oozes power and electricity.
As soon as you hear it live, you will realize instantly that it has nothing to do with modern offerings.
Seriously, do not be fooled by its appearance, this thing sounds open, has incredibly fast envelopes and punches very hard, much in the lines of a minimoog or a vintage roland. You will hardly find a better bass machine, it is second to none.
You will see many demos using aggresive sounds, as Waldorf allowed it to saturate the filter by design; however, it can be gentle as well, just by leaving the output of the oscillators to the filter at about 50%, and it will sound very much like a Roland filter.
The allowed frequency range is FULL, so be careful with your speakers... and the filter can also self-oscillate, yielding pure sine signals that are a real blessing for subs, or to make piercing glitches or sounds.
Last... it has a powerful internal modulation matrix and a groovy arpeggiator with panning. The synth responds incredibly well to midi, and there are plenty of VST and IPad editors (and also some hardware programmers) with which you can make easier to edit or perform with the Pulse."
via this listing


It is a late unit, clean, fully responsive, sounds like a beast.
Ideal for collectors or studios that care about gear.
The Plus is the best and most sought-after version of the original Waldorf Pulse.
The differences between the regular Pulse and the Pulse Plus are remarkable, and turn the Plus into a Swiss army knife for modern studios:
MIDI to CV/Gate converter with two CV signals.
It can interface different brands of synths and modules by selecting different voltages, and use the extensive modulation matrix on the CV signals.
CV/Gate inputs to control the Pulse with a modular or from other CV/Gate synths or controllers
External Audio Input to the filter, which is the best version (moog ladder type) of the 24dB LP filter in Waldorf 4Pole "Miniworks".
If you do not know, the Pulse is a serious vintage synth that oozes power and electricity.
As soon as you hear it live, you will realize instantly that it has nothing to do with modern offerings.
Seriously, do not be fooled by its appearance, this thing sounds open, has incredibly fast envelopes and punches very hard, much in the lines of a minimoog or a vintage roland. You will hardly find a better bass machine, it is second to none.
You will see many demos using aggresive sounds, as Waldorf allowed it to saturate the filter by design; however, it can be gentle as well, just by leaving the output of the oscillators to the filter at about 50%, and it will sound very much like a Roland filter.
The allowed frequency range is FULL, so be careful with your speakers... and the filter can also self-oscillate, yielding pure sine signals that are a real blessing for subs, or to make piercing glitches or sounds.
Last... it has a powerful internal modulation matrix and a groovy arpeggiator with panning. The synth responds incredibly well to midi, and there are plenty of VST and IPad editors (and also some hardware programmers) with which you can make easier to edit or perform with the Pulse."
Yamaha QY10 Music Sequencer w/ VHS Style Case SN HH02266
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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