Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
Saturday, January 31, 2026
Roland Boutique TR-09 Rhythm Composer Drum Machine w/ Dust Cover
See dealers on the right for pricing and availability on gear.
LABELS/MORE: Auctions, Perfect Circuit, Roland
LABELS/MORE: Auctions, Perfect Circuit, Roland
Roland Boutique TR-08 Virtual Analog Drum Machine
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
See dealers on the right for pricing and availability on gear.
LABELS/MORE: Auctions, Perfect Circuit, Roland
LABELS/MORE: Auctions, Perfect Circuit, Roland
ROLAND TR-08 DESKTOP DRUM MACHINE
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Signal Sounds listings
via this listing
Additional Signal Sounds listings
See dealers on the right for pricing and availability on gear.
LABELS/MORE: Auctions, Roland, Signal Sounds
LABELS/MORE: Auctions, Roland, Signal Sounds
ROLAND J-6 CHORD SEQUENCER SYNTHESISER
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Signal Sounds listings
You can find demos in previous posts here.
via this listing
Additional Signal Sounds listings
You can find demos in previous posts here.
See dealers on the right for pricing and availability on gear.
LABELS/MORE: Auctions, Roland, Signal Sounds
LABELS/MORE: Auctions, Roland, Signal Sounds
Ekdahl Quad Massager Quadraphonic VCA / Mixer / LFO
Note: links to listings are affiliate links for which the site may be compensated.
These appear to be the first demos of the Ekdahl Quad Massager to be featured on the site. The first video is from 15 years ago.
Playlist:
1. Ekdahl Quadmassager in 4 input "mix" mode - Drew Daniel
4. Noise Sketch #247 Clockwise (Ieaskul F. Mobenthey, Knas Quad Massager, Papa Srapa, Blippoo Box) - Shirato_Noise
5. Noise Sketch #244 Message (Ieaskul F. Mobenthey, Knas Quad Massager) - Shirato_Noise
via this eBay listing
See this previous post for specs/features.
These appear to be the first demos of the Ekdahl Quad Massager to be featured on the site. The first video is from 15 years ago.
Playlist:
1. Ekdahl Quadmassager in 4 input "mix" mode - Drew Daniel
The Ekdahl Quadmassager is a quadrophonic panner and so much more. This video is very STEREO, but should be in Quad, but, well, that's not very practical, is it?, so please go do a show in quad or see one...in the meantime visit us at the webpage in the video, or come see us at the True Vine Record Shop in Hampden in beautiful Baltimore, the City that Reads. The Quadmassager was designed and built by Karl Ekdahl of KNAS and a little bit by M.C. Schmidt of Matmos.2. Knas Ekdahl Quad Massager As a CV mixer - Shirato_Noise
The output of the unpredictable blend of the four Fourses signals modulates the Denum.3. Soundscape #034 Memories of Glaciers (Mobenthey, Mannequins, Blippoo, Knas Quad Massager) - Shirato_Noise
4. Noise Sketch #247 Clockwise (Ieaskul F. Mobenthey, Knas Quad Massager, Papa Srapa, Blippoo Box) - Shirato_Noise
5. Noise Sketch #244 Message (Ieaskul F. Mobenthey, Knas Quad Massager) - Shirato_Noise
via this eBay listing
See this previous post for specs/features.
Vintage Yamaha FX-1 Organ Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
"The Yamaha FX-1 Vintage Organ Synthesizer is a classic dual 61-key organ with a third mini-keyboard for added versatility. It features semi-weighted keys and a hybrid analog/digital design with automated sliders, making it a distinctive choice for musicians looking for a full pedal organ synth. With input & multiple outputs and a display screen, this Yamaha rare full size organ from Japan offers a wide range of creative possibilities for electronic music production. The sleek design and iconic brand reputation make it a must-have for collectors, organists and FM synthesizer enthusiasts."
via this eBay listing
"The Yamaha FX-1 Vintage Organ Synthesizer is a classic dual 61-key organ with a third mini-keyboard for added versatility. It features semi-weighted keys and a hybrid analog/digital design with automated sliders, making it a distinctive choice for musicians looking for a full pedal organ synth. With input & multiple outputs and a display screen, this Yamaha rare full size organ from Japan offers a wide range of creative possibilities for electronic music production. The sleek design and iconic brand reputation make it a must-have for collectors, organists and FM synthesizer enthusiasts."
Sequential Pro-8 RARE Analog Polyphonic Synthesizer SN 12101
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
"The Sequential Pro 8 is a very rare synth that was released in 1984. It essentially is a Sequential Split 8 that was manufactured in Japan for overseas markets. It has a great classic Sequential tone and kept was the "classic" Sequential look in design compared to the Split 8's more modern look. Quite a rare and awesome synth! As you might expect, it has that unmistakable Sequential sound.. amazing pads, basses, leads, efx and more. Oh.. the strings are outstanding too!
This synth is in great condition and has been checked by our technicians to ensure full functionality."
via this eBay listing
"The Sequential Pro 8 is a very rare synth that was released in 1984. It essentially is a Sequential Split 8 that was manufactured in Japan for overseas markets. It has a great classic Sequential tone and kept was the "classic" Sequential look in design compared to the Split 8's more modern look. Quite a rare and awesome synth! As you might expect, it has that unmistakable Sequential sound.. amazing pads, basses, leads, efx and more. Oh.. the strings are outstanding too!
This synth is in great condition and has been checked by our technicians to ensure full functionality."
Ensoniq SQ-80 Cross Wave Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
"The Ensoniq SQ-80 is an eight-voice, polyphonic, poly-timbral synthesizer, capable of playing eight different sounds at once, with dynamic stereo panning for each voice. Other luxuries include a total of 75 waveforms, a 61-note keyboard with velocity & aftertouch, and a floppy disk drive for storing patches and sequences. By combining all of this in a single integrated unit. the Enqoniq SQ-8O makes the perfect nerve center for any studio rig. This unit comes fully tested and serviced. Enclosure is in excellent condition for an instrument of this age, price reflects quality. Power cord included."
via this eBay listing
"The Ensoniq SQ-80 is an eight-voice, polyphonic, poly-timbral synthesizer, capable of playing eight different sounds at once, with dynamic stereo panning for each voice. Other luxuries include a total of 75 waveforms, a 61-note keyboard with velocity & aftertouch, and a floppy disk drive for storing patches and sequences. By combining all of this in a single integrated unit. the Enqoniq SQ-8O makes the perfect nerve center for any studio rig. This unit comes fully tested and serviced. Enclosure is in excellent condition for an instrument of this age, price reflects quality. Power cord included."
Hypnotic Minilogue XD with Microcosm | Jamuary 2026 Day 26
video upload by Neo Golightly
"Today a hypnotic jam with the Korg Minilogue XD and the Hologram Microcosm. So fascinating what kind of soundscape the Microcosm produces. Should use it more often. Thinking about integrating it into my modular system."
Like clockwork.
Ambient Generative Music | Ableton Air & YAMAHA TQ5
video upload by Akihiko Matsumoto
"Generative Sequencer: Ableton Air https://akihikomatsumoto.sellfy.store...
Inspired by Timeless Techniques
'Air' draws its inspiration from Brian Eno's Music for Airports and the concept of overlapping tape loops. This Ableton Max for Live plugin translates these ideas into a modern generative sequencer, enabling you to explore infinite musical possibilities without repetitive programming.
Effortless Note Generation
Forget the constraints of the piano roll. 'Air' generates notes autonomously, creating endless variations of melodies, rhythms, and harmonies. Your music becomes a living, breathing entity that evolves over time, making each moment unique.
Perfect for Experimental and Ambient Music
Whether you're crafting immersive ambient soundscapes, exploring experimental electronica, or composing intricate minimal music, "Air" provides the tools to elevate your creativity. Its generative approach ensures that no two performances are ever the same, offering a fresh perspective with every playback.
Features Designed for Limitless Inspiration
Evolving Sequences: Generate infinitely unique patterns that never repeat.
Customizable Settings: Fine-tune parameters to align with your artistic vision.
Seamless Integration: Designed for Ableton Live users who value creativity and experimentation.
Create Music That Breathes
'Air' is more than a plugin—it's a partner in creation, designed for musicians who embrace unpredictability and seek to push boundaries. Unleash the power of generative composition and let your music take flight."
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
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MATRIXSYNTH - EVERYTHING SYNTH
© 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














































