MATRIXSYNTH: Saturday, August 28, 2021

Saturday, August 28, 2021


video upload by e j

"testing, testing"

Update: Optotronics Synth DIY Eurorack System:


"These are raw recordings of my new eurorack system. The boards' layout and panels were designed by me. All of the modules were based on quite standard designs: diode ladder VCFs, CEM VCOs, OTA VCAs, basic LFOs, discrete envelopes and single PT2 delay.

CV was generated by Korg SQ1 and Instruo's Harmonaig.

I kept modules quite simple, as the system was made specifically for future workshops and DIY kits (soon available via etsy shop)

The system will be keep growing in new modules!


released August 28, 2021"


Erica Synths Syntrx & Zen Delay with Make Noise 0-CTRL

video upload by Nightlife Electronics

"Here is a little demo showing the raw beauty of the Erica Synths Syntrx. Three vignettes that give a peak into the sonic underbelly of this vintage flared beauty.

The Syntrx user interface takes inspiration from the legendary EMS Synthi AKS and uses all original circuits designed in cooperation with engineers at the Riga Technical University .

Designed with experimentation in mind, the full complement of analog modules contained within are perfectly complemented with a very unique digitally controlled analog switch matrix that allows you to store up to 256 patches that can be recalled in a moments notice!

Teamed up here with the lush sound of the Zen Delay and pushed and pulled in time with the Make Noise 0-CTRL, a match made in heaven!

All three of these items are available now at Nightlife Electronics:

Nightlife Electronics is a shop based in Vancouver, British Columbia that specializes in the sale and service of the world's finest drum machines, synthesizers, eurorack modules and samplers. Visit our online shop to see what we have in store or if you are in the Vancouver area please stop by and try some amazing synths in person!"

Mystery Buchla Easel Patch

video upload by Todd Barton

"All sounds are from the same patch, or as Don Buchla and Allen Strange called them, "instrument definitions." Only switches and sliders have changed. It is a patch I'm working on for my Patreon "Easel Patch of the Month" at"

OB SuperVerb XVI: Sequential OB-6 + 2 X Alesis MIDIVerb II + QuadraVerb Plus + Audiothingies Dr. A

video upload by thesrabbit

"This is similar to my last vid, titled 'OB SuperVerb' [posted here], but now I've added the QuadraVerb Plus to the Alesis reverb stack. So, here we've got a MIDIVerb II on preset 28 (XLarge Warm 5 seconds) fed into a MIDIVerb II on preset 29 (XLarge Warm 15 seconds) fed into a QuadraVerb Plus on preset 75 (Taj Mahal). I've only tweaked a couple things on the QV, but it's very close to the stock preset sound.

In addition, I've got the Audiothingies Dr. A running in parallel, with my favorite go-to modulated plate reverb setting. This smoothes things out a bit as the Alesis stack on its own can get borderline clangerous, if that's a word. However, sometimes that clangy, feedback-like tone is just the ticket. I couldn't really decide on which version I like best, so I put them all here, including the "dry" OB-6 only version, which just has the internal FX. (DDL and BBD, with different delay times)

Which version is your favorite?

0:00 Full Stack Developer Version (2 x MIDIVerb II + QuadraVerb with Dr. A plate reverb in parallel)
5:08 Alesis Reverb Stack Only (2 x MIDIVerb II + QuadraVerb)
10:15 Dr. A Only (Plate Algorithm)
15:21 OB-6 Only (No External FX)"

Sequential Circuits Pro One (MTG Turbo CPU MIDI Mod) SN 2419

via this auction

Additional SYNTH CITY Listings

"Here we have Sequential's classic flagship monosynth! A dual oscillator beast with arpeggiator, the Curtis filter, sequencer, and a simple but powerful modulation matrix. The Pro One is well known for its sound and has been used by countless musicians since its release.

This Pro One was just serviced, keybed assembly cleaned and rebuilt, new CPU and socket installed along with the MTG Turbo Midi upgrade kit."

Prophet VS Brochure

via this auction

"Original and vintage 1985/86 Sequential Circuits Prophet VS Synthesizer BROCHURE only. 4 color pages cover to cover. Fold out pic of the Prophet VS Synthesizer. Has punch holes, no missing pages, intact, no writing, no highlights, no stains, no stamp. Synthesizer history from the golden age of electronic music synthesizers."

Oberheim Matrix 6

via this auction, also on Reverb

"Classic Oberheim Matrix 6 in full working condition. No issues on this one.. its ready for your studio or any stage.

This synth has that unmistakable OB sound at a price that is way more affordable than an OB8, OBXA!

Although you can fully edit any sound and create some wicked lush sounds.. I used a software editor to speed up that process. There are many great editors for Mac, PC and IOS.

This Matrix is in great condition in and out."

Twisted Electrons MegaFM

via this auction

"Unlike most FM synthesizers that are very clean and digital, the YM2612 has very characterful tone allowing a broad sound palette ranging from beautiful plucked strings to growly distorted bass lines.


Hardware FM synthesizers are infamous for their reduced controls and complexity to program, with tiny LCD screens and only a couple of buttons to operate a load of menus…
With its 32 operators faders, 14 knobs and 15 buttons MEGAfm offers unprecedented hands-on FM control!

Every knob and fader can easily be modulated by the easy to use LFOs.


The YM2612 chip offers 6 voices of crispy FM, 4 operators per voice and 8 algorithms.
MegaFM features 2 chips for a total of 12voices spread across two outputs (or summed to one)"

You can find demos in previous posts here.

Resampling the Whole Track.. A Technique I've Wanted To Share // Can Circuit Rhythm Alias?

video upload by Ricky Tinez

"Yea i know i said WHOLE TRACK, and i just did a portion.. i ain't here to bore you to death haha. But you get the idea, play with something like this and resampling different portions of your track and see where that can take the arrangement!

Again, (broken record) I work at Novation and am using Circuit Rhythm to resample because i know it the best as of now. But you can Resample on most samplers! SP-404, Digitakt, MPC Live, MPC One, MPC Live II, Octatrack, the list goes on forever. You can even Resample in Ableton!"

Gotharman's Urano: Digital Filters

video upload by gotharman

"Playing a bit with the Digital Gotharman Filters..."

bizarre jezabel chloe stereo mk2

video upload by ivan krasnov

What makes a good synth? // Herbs and Stones // Gianluca Herbertson

video upload by

"Disregard the convention in the search for playfulness - probably good advice for anyone who's looking to innovate. In particular with instruments, where playfulness is key to inspiration, prioritizing the experience over the 'perfect sound' might lead to happy accidents.

Gentle Wham and his older sister (or brother, however you wanna see it) Liquid Foam, are both quite special in that sense. Their sound is gritty and surprizing and their visual style, typography and icons reflect a bold artistic vision that does not conform.

Gian, from Herbs and Stones, started tinkering with electronics at an early age. But it was only recently that he has taken the step to make his own instruments.

In this conversation, we go through the various prototypes that lead to Liquid Foam. We touch on an unreleased filter 👀, and end with his latest creation - Gentle Wham!"

Vintage Roland D-50 Synthesizer with Prophet Rev2 Demo - No Talking - Soundscapes

video upload by 3 r i c C a r l s o n

"Here's a song I made with a vintage Roland D-50 and a Sequential Prophet Rev2.

No effects were added. Both synths went direct into my Avid Omni HD.

The famous Soundtrack preset can be heard 1:05."

3ric Carlson - 3lectric Blanket

Roland JSQ-60

via this auction

"Sequencer for the two synths that are fitted with DCB ports, I name it Juno 60 and Jupiter 8.

Tested and runs, ram check test done and ok.

Comes with a 9v external power supply."

Oberheim Xpander SN G43309

via this auction

"Excellent condition. Includes recent service notes. In 100% working order. Includes flight case and will be shipped in it. Includes printed manual and power."

Quasimidi Sirius Techno Synth w/ Vocoder

via this auction

1972-1973 Univox Korg Mini-Korg Synthesizer

via this auction

Dave Smith Instruments Mono Evolver Keyboard Synthesizer

via this auction

"It’s aggressive gain-staging, caterwauling stereo filters, lofi wavetables, quad lfo’s, and modulation sequencing makes for a wild party."

Yamaha TX 816 FM Synth Rack 8x DX7 MIDI Modules SN 3154

via this auction

"8 modules of original DX7 12 bit FM sound."

Yamaha CS40M Vintage Synthesizer

via this auction

"Yamaha CS 40m (just serviced, missing slider caps.)."

Suiko ST-50 Multi-sound Koto Shakuhachi Synth Voice Trainer SN 310210

via this auction

Stochastic Inspiration Generator Demo

video upload by brandon logic

"four melodic voices controlled by the Stochastic Inspiration Generator."


Stochastic Inspiration Generator demo 2


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

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