MATRIXSYNTH: Saturday, October 2, 2021

Saturday, October 02, 2021

Munatix - Burning Up (Official Video)

video upload by Munatix

New from supporting member, Munatix, featuring a Sequential Circuits Prophet-5, ARP 2600, and KORG Polyphonic Ensemble S.

"Munatix – Retro Vibe Synthpop Band

Spotify : Apple Music :

ISRC : BE 3ID 21 00012 - Song
ISRC : BE 3ID 21 90012 - Video

Special thanks to Kevin Vonckx from Vos Media for shooting the video images.

Thanks to all the local graffiti artists that provided the awesome backgrounds for this video!"

DIY PolySynth by Chris Synths

DIY PolySynth In-Progress Demo video upload by Chris Synths

"Hi folks, here's a short, no-talking demo of a prototype 8-voice analog synthesizer I am working on. What do you think?

The hardware of each voice features two VCOs, a ladder-style lowpass and a state-variable highpass filter, wave folder, and ring mod.

All voice circuitry was made with op-amps, OTAs, and discrete components.

There is one effect, an 8-stage analog phaser.

There are two ST microcontrollers for MIDI, voice control, display driving, front panel scanning, etc. Control voltages are produced by 23 DACs, 21 DAC7554 and 2 AD5676.

Circuit design and PCB layout was done in Eagle. PCBs made by JLC. Sheet metal designed in and ordered from emachineshop. Software written in C using STM32CubeIDE. Knobs and buttons are 3D-printed."

Demo of polyphonic analog synthesizer prototype
video upload by Chris Synths

"Some demo sounds from my previous DIY analog synth prototype.

It has six voices, two VCOs per voice, a multimode filter, 3 LFO, 2 ADSR, and a phaser for effects. No Curtis or SSM chips, all discrete and op-amps. A Microchip PIC24 was used for control.

One of the design ideas was to have all the modulation in one place on the panel rather than spread around in each module, but it ended up being not as intuitive to program that way."

Strange Sounds From The Underbrush __ Gotharman's Tiny LD Workstation Synth __ #TTNM


"This Gotharman Tiny LD preset started out as an analog filter ping test and evolved into a strange experimental music collage. The small brother of the Little Deformer 3 synthesizer workstation here has the Dual SSI Spaze Analog Filter Board installed and I'm also using the new digital synth filter algorithms, which can sound smooth and sweet for bass sounds too.

I love to hear from you and talk about synths and stuff, so always feel welcome to post a comment or send me an e-mail to:


Sound Lab Sessions: MODAL ELECTRONICS 008

video upload by Major OSC

"A quick mini jam with ableton live, some sound design / patch creation. This is a much different animal than I had once thought. Tried to bring out some ooo and aaah moments here and there. Feel free to skip around. Enjoy."

A Medieval Ditty

video upload by O.Z. Hall

"The Sequential Prophet X . Custom split with guitar and recorder/flute.

I've been obsessed with Medieval music of late. This is an original."

The Signal State - Eurorack Modular Synthesizer Farming Game

Modular Synthesizer Puzzler | The Signal State - Let's Play / Gameplayvideo upload by

Actually more than a farming game...

"Set in a post-apocalyptic future, The Signal State puts your logic skills to the test with complex puzzles inspired by modular synthesizers. Repair machines, rebuild an abandoned farm, and be part of a revolution that will change the fate of agriculture once and for all."


Roland JD-990 - Ethernal Pad performed by Chronos

video upload by LFOstore

"From our soundset:


LFOstore JD-990 posts

Framed Casio CZ-101 Keyboard synthesizer & Memorabilia Signed By Geoge Duke

via this auction

"Framed Casio CZ-101 Keyboard synthesizer & Memorabilia Signed By Geoge Duke.good conditions probably has light wear and scratches,the white signed and words on Casio CZ-101 is over previous red thin marker also has another Signed black? or red? marker not to visible.see all pictures for more details and conditions,not include power cord.frame measurements: 35" X 32 1/2" X 4 1/4""

Yamaha CS-60

via this auction

Additional Switched On Listings

"This Yamaha CS-60 is fully functional, in excellent condition and has been fully serviced. The CS-60 is a classic analog poly synth from Yamaha's excellent CS series. It is similar to the CS-80 with scaled down functionality; featuring 8 voice polyphony, resonant high pass/low pass filter with envelope modulation, ring modulation, pulse width modulation, LFO, and assignable aftertouch."

Demo in the listing previously posted here. You can find additional demos here.

Yamaha CS-15D SN 4245

via this auction

"A true classic analog synth from Yamaha. The CS15D is an incredibly warm mono synth with preset and manual voices. For being over 40 years old, it’s in great shape. It is missing two slider plastics, and there’s some hum out of the headphone port (not the line out) but is in great shape."

Demo in the video previously posted here. You can find addtional demos scattered throughout additional posts here.

Solton Arranger Plus

via this auction

You can find demos in previous posts here.

"The Solton Arranger Plus was produced in Italy by Ketron in 1987. It has single outputs for bass and drums. Small brother of the cult SOLTON PROGRAMMER 24 / 24S arranger. They share the same audio engine but this one lacks the more advanced editing possibilities. To those who are into Italo Disco music they know these machine rule ! Consisting of a rhythm unit (digital 8bit PCM samples very like the LinnDrum, Oberheim DMX, Sequential Circuits Drumtraks etc) and a analog synth engine made of: 1 bass sound, 2 "chords" tracks, 1 "solo" track and 1 organ track."

MFB Dominion 1 and MFB Dust Cover

via this auction

DSI Evolver SN 04422

via this auction

"The Evolver marked Dave’s Smith’s triumphant return to hardware synths and still sets the standard for sheer sonic ferocity in a monosynth. It features a plethora of Dave’s best ideas packed into a monstrously powerful instrument with a sound like no other.

The Evolver’s unique tonality comes from the synergy of its two analog oscillators and two digital oscillators (which feature the waves from the legendary Prophet VS). Classic Curtis analog low-pass filters and real analog VCAs add warmth and girth to the analog section while the digital high-pass filter, tuned feedback, and digital distortion provide sizzle and grit. But what really sets the Evolver apart is the way in which the analog and digital sides of its personality mesh—in a true stereo signal path. Massive doesn’t even begin to describe the sound of the Evolver.

Imagine being able to move effortlessly from thick analog smoothness to crisp digital edge—or anywhere in between—and you begin to get the picture. The LFOs, step sequencer, and three separate delays can all be synced for complex, evolving, rhythmic, time-based effects in true stereo.

It’s a sound designer’s dream that can go from ultra creamy to ultra aggressive with the turn of a knob. If you need convincing, just listen to the demos.

Monstrous four-oscillator voice architecture
True stereo signal path with separate Curtis analog low-pass filters in each channel
Dedicated onboard effects (feedback, delay, distortion, high-pass filter, etc.)
16 x 4 step sequencer really brings the Evolver to life with evolving “pseudo-polyphonic” sounds – you won’t believe it’s mono!
Stereo audio input for audio processing of external stereo or mono signals, enabling the synth to act as a unique stereo effects processor
Everything (sequencer, LFOs, and delay) syncs perfectly to MIDI.
Easy-to-navigate matrix-style interface for quick editing and real-time control of 8 parameters simultaneously
Multiple Evolvers can be daisy-chained for more polyphony."

Dave Smith Tempest

via this auction

Neutral Labs Elmyra

via this auction

You can find demos of the Elmyra in previous posts here.

KORG X-911 Guitar Synthesizer SN 271802

via this auction

Reverse Keys KORG POLY-800

via this auction

"Coast Ø Coast" - My Shared System (Make Noise 0-COAST + 0-CTRL + Tape & Microsound Music Machine)

video upload by Autotross

Analog session 1 by graal7.

video upload by

only analog synth
moog one --yamaha cs01--roland juno 6

Patch n Tweak
Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

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