MATRIXSYNTH: Thursday, September 19, 2019

Thursday, September 19, 2019


via Third Man on the Moon

"The OB6 is a very special and unique sounding analogue synthesizer.

With its 12dB state variable filter it is especially well suited for pads and keys. Since the filter is sweepable between low-pass and high-pass, blending in just a tad of high-pass can give you that nice fairy dust pads. Yummie!

To make a great synth special we have recorded the left and right channels separately and detuned them slightly for truly wide stereo sounds on 31 of the 50 patches . (Add a touch of reverb and/or delay and you’ll be floating in space!)

For the recording process we’ve utilized a chain consisting of hi-end solid state and tube Gear. Going thru a passive DI (Jensen Transformers), VP28 Preamp, BT50 EQ, Manley Variable Mu Compressor, Culture Vulture Tube Saturator and finally recorded into our Apogee Symphony MK2 Converter. No digital processing whatsoever as with all of our samples. Resulting in a big and wide stereo spread and warm tone.

The focus of this pack is Pads and Keys but you’ll find Strings, Leads and Basses as well to round things off. Download the free demo version of the OB6 Pads&Keys sample pack here"

DIY voltage controlled Xtal replacement

Published on Sep 19, 2019 juanito moore

Some DIY with Modular for the Masses.

"This is an optional part of the Modular For The Masses reverb module. This adds a voltage-controlled clock to the cheap Chinese digital reverb/effects circuit. With this modification, the reverb effects module can do vibrato, tape-wobble, all the crazy modulation you might want to do.

You can build it!!!

You will need:
PT2399 chip
Ceramic disc 100nF capacitors (get lots they're CHEAP)
Resistors (get a kit or buy 100 each of the most common values)
10uF capacitors
a 5V regulator (the 78L05 I use here isn't powerful enough to run the whole effects module I'm building, so in the final project I'll be using a larger 7805 regulator)
a 100K potentiometer
one NPN transistor, I'm using a 2N3904 (whoops, I accidentally wrote 2N3906 in the video LOL)"

spectral needs

Published on Sep 19, 2019 zack dagoba

"Purity of Buchla. Nothing else in this one - I set up 7 envelopes on the 200 series, being triggered by 7 trigger outs on the 100 series sequencer. The envelopes control 7 bands on the 296 Spectral Processor, giving it a sort of polyphonic note sequence, the source being a mixture of oscillators and noise. This mono signal was then sent to the Dodeca reverb and the 277 delay unit for stereofication"

Simmons SDS7 #1558 081619

Published on Sep 16, 2019 The Simmons Guy

"Run through of fave kits from SDS7 #1558"

You can find additional demos of the Simmons SDS7 here.


Simmons SDSV #800 Featuring Simmons MTM #656 Published on Sep 17, 2019

"Quick demo of Simmons SDSV #800 and MTM #656 in action."

via this auction

"Freshly restored Simmons MTM (MIDI / Trigger / CV interface) in excellent working and physical condition with new battery and OLED display.

These are incredibly rare and don't come up very often or in this condition. And, 35 years later, it's still the best way to control your vintage SDSV, SDS7 or other non-MIDI drum modules via MIDI. Especially if you have a Hi Hat module - as no other interface will allow you to control Hi Hat Open / Closed.

This would also pair perfectly with the fully loaded, freshly restored SDSV < SDS 5 > I have listed separately." [just posted]


Published on Sep 16, 2019 The Simmons Guy

Simmons SDSV #800 Fast
Simmons SDSV #800 Featuring Simmons MTM #656
Simmons SDSV #800 Swing
Simmons SDSV #800 808ish

via this auction

"Incredibly rare, FULLY LOADED, Vintage Simmons Electronic Drums SDSV < SDS 5 > Mainframe (including insanely rare digital Hi Hat and Cymbal modules!) in freshly restored condition.

Every aspect of this machine has been gone through with a fine-toothed comb and it sounds as good as it looks. All pots have been cleaned and are smooth and noise free. Edge connectors have been re-tinned and receptacles cleaned. Power supply has been checked and puts out a clean +15v and -15v. All knobs, caps, faceplates, etc. have been thoroughly scrubbed. All buttons work perfectly. Trimmers for Presets 3 and 4 all function as expected with none of them too chewed up to fit a screwdriver. Preset 1 has been fine-tuned on all modules, as well."

Buchla 200e Electric Music Box Modular Synthesizer with 201e-12 and Flight Case

via this auction

"Buchla 200e modular system in a 201e-12 Powered Cabinet also included is the original white Buchla flight case that fits the system for added protection while moving or storing

Included are all the cables you will need to start patching, 12 Tiny jack audio cables, 12 Pomona banana cables for CV and 4 Pomona Double Banana Stackable shorting Bars to connect the 281e outs to the 291e inputs, power supply and also a J&R e-Ray 12 LED light for the 201e-12 powered cabinet.

Here is a list of the Buchla 200e system:
- Dual Arbitrary Function Generator Model 250e
- Uncertainty Source / Dual Filter Model 267e
- Mixer / Preset Manager Model 206e
- Twisted Waveform Generator Model 259e
- Complex Waveform Generator Model 261e
- Quad Function Generator Model 281e
- Quad Dynamics Manager Model 292e
- Frequency Shifter / Balanced Modulator Model 285e
- Keen Association Polyphonic Touch’n’Run Voltage Array Model 220
- 201e-12 Powered Cabinet - A three-boat cabinet designed to accommodate up to 12 200-series modules
- Original Buchla White Flight Case for the 201e-12 Powered Cabinet
- J&R e-Ray 12 LED light for 201e-12 Powered Cabinet
- 12 Pomona Stackable Banana cables of various lengths for routing CV signals
- 12 Tini-Jax cables of various lengths routing audio signals
- 4 Black Pomona Double Banana Stackable Shorting Bars
- Buchla Accessory Bag
- Buchla USA Easel Weasel Sticker

The list price for this system configuration is around $16,300

I bought this complete system used last year for around 20% off list prices and love it very much but family needs have come up and I am forced to part with it. I am starting bidding out at more than 45% off list prices, synth dreams can come true!"

Oberheim Synthesizer Factory Catalog Including the OB-Mx

via this auction

OB-Mx Two Voice Card
Matrix 1000

Oberheim OB-Xa with Encore MIDI

via this auction

"OB-Xa professionally restored and improved with the best MIDI retrofit from Encore Electronics the OBXa-MK

- Comes with all the original factory patches (no tape backup needed)
- 8 Voice version
- 120 Programs
- Auto tune works and tunes all 8 voices
- No battery needed
- New springs and bushings for the keyboard have been installed
- Rebuilt power board and rear power rails / voltage regulators
- New voice dip switch
- Cleaned and repaired inside and out"

Crumar Bit 01 Analog Polyphonic Rack Synth

via this auction

"Fully functional and in great shape inside and out. Italian polyphonic rack synth. Pretty easy to program, all laid out on the front panel. Sounds amazing!

2 DCO, MIDI in and thru, Curtis CEM filter."

Oracle Vol 2 - Sequential Prophet 12 - Patches 75 to 99 -

Published on Sep 19, 2019 GEOSynths

GEOSynths Sequential Prophet 12 videos

Oracle Vol 2 - Sequential Prophet 12 - Patches 50 to 74 -

Published on Sep 19, 2019 GEOSynths

"Part 3 of 4 - 99 Patches to be released very soon.

After quite some time, GEOSynths is back with the fantastic Sequential Prophet 12. Twice the power this time as ALL Patches use both Layers for Evolving Pad's, Textures over time, Cutting Leads and a whole host of other great Sounds.

There is a few Split Patches, however the majority are 2 Layer Stacks for Ultimate Power."

GEOSynths Sequential Prophet 12 videos

DSI Pro 2 & Strymon Big Sky

Published on Sep 19, 2019 3rdStoreyChemist

Novation Launchkey Mini [MK3] x Groovebox Performance

Published on Sep 19, 2019 Ampify

"With the announcement of the latest release of the new companion for Groovebox, we've made sure that it works seamlessly with our app. Watch the video to see what's new and what's changed. Well done Novation. 👏"

Gotharman's LD3: Color Of The Sky

Published on Sep 19, 2019 gotharman

"Another jam with the new LD3 oscillators, featuring resonator strings and other cool sounds."

SYNTHFEST UK Set for 05-OCT-2019 \\ The Octagon \\ Sheffield

"The UK's Biggest Synthesizer Event

Get hands-on at the UK’s biggest synthesizer event. Plug in your headphones and turn those dials!
Check out the widest range of Eurorack, Keyboards, Soft-Synths, DIY kits and much more.
Wallet Alert - This is the biggest retail show of its kind - bargains galore!
Chat to the modular meet crowd who've gathered to show off their proud collection.
Breeze by the college education stands for course info and don’t miss the strange and exotic start-up companies.
Take a break: Grab some food or go watch one of our fantastic seminars by industry experts and musicians.

Event runs 10:30am to 6:30pm - something to see every minute of the day!"

If you attend, get a video of the Colossus! :)

"Slow Poison" - Dave Lakes & The World Of Tomorrow

Published on Sep 19, 2019 modularman

"Let's get one thing clear: this is an ANTI-DRUG song / video.
The real star in this song is the use of the PAiA 9730 Dual VCF to achieve the pure filter self oscillation to play the 'melody'. This was done by feeding the filter resonance control voltage through a foot controlled volume pedal. In this way the filter oscillation was 'played' with precise control. If you are not familiar with the PAiA 9730, do yourself a favor and check one out. They are one of my very favorite voltage controlled filters. Too many features to go into here, but the PAiA website has a detailed description of this DIY kit.

And don't do drugs!"

TEST SERIES Digital Artifacts Static Noise 1010 Martin Howse Blackdeath Noise Synth Gotharman

Published on Sep 19, 2019 Outsider Sound Design

"Sound Design experiments. Making digital artifacts, granular static, and noise with an Octatrack, Gotharman Little Deformer, FX Deformer, and 1010 / Martin Howse Blackdeath Noise Synth.

The purpose of 'TEST SERIES' is to focus on the sound design possibilities of various gear combinations. This series is not musical nor does it serve as an instructional video. It is all about sound potential.
Please consider supporting this channel by purchasing a sample pack or music download from"

Octave CAT SRM Synthesizer | Original 1977 Soundsheet / Flex-Disc

Published on Sep 19, 2019 Alex Ball

"A bit of a different upload this week, but I think it’s good to mix things up.

Whilst working on my documentary about ARP Instruments I got the opportunity to speak to David Frederick (aka Dave Fredericks) who was one of the key people who worked there from 1970 - 1976.

His full role will be told in the film, but in a nutshell, David’s background was as a performer, recording artist, demonstrator and regional sales manager for the Lowrey Organ Company. When one of his friends at a music store took in a strange new invention called the "ARP 2600" in 1970, David was asked to demonstrate it. A certain Mr Pearlman turned up to see his instrument demonstrated live and was impressed enough to snap David up to join him at what was then Tonus Inc.

David was heavily involved in the human engineering, patch books, overlays, soundsheets, point of purchase materials, marketing, demonstration and management of the sales teams and rose to the role of Vice President. He started the NAMM Jam (that still continues to this day) and is also the link between ARP and Eminent which resulted in the famous ARP/Solina String Ensemble that then lead onto the later ARP Omni and Omni II.

Post-ARP David went onto join Octave Electronics who’d released the CAT Synthesizer in 1976. The updated Series Revision Model (SRM) was released in 1977 and that’s where this recording comes from. David sent an original copy he had to me in the post and I asked if I could digitise it and upload it for posterity. So here we go!

There was a little nick in the soundsheet that meant that the very first sentence couldn’t be picked up by the needle but it was '…(missing)… for Octave Synthesizers' and then continued on where this digitised version picks up. I assume it was 'This is Dave Fredericks for Octave Synthesizers' but I can’t be totally sure.

Anyway, here’s an Octave article from Sound On Sound for those who want to delve deeper.

The Octave posters are taken from the wonderful Retro Synth Ads site:

Thanks for watching!"

SND FB-14 Extended Range Fixed Filter Bank SN 10097

via this auction

ROLAND SH-101 Analog Monophonic Synthesizer w/Modulation Grip Strap & Case SN 267058

via this auction

Oberheim Xpander

via this auction

Oberheim OB-Xa w/Heavy Duty Flightcase SN 813330

via this auction

"I'm selling my beloved OB-Xa synth, it's been relatively recently serviced 2018 by Simon Flynn in London. He is a vintage synth restoration guru who has restored the Thompson Twins OB-Xa amongst many others. Simon re capped the power supply and recalibrated all 8 voices. It comes with a very heavy duty Clydesdale flight case. It's in top condition and will be missed."

1977 Roland GR-500 SN 640461

via this auction

"Very rare guitar synth from 1977.
This is the later revision with the tuning pot on the back of the synth. The guitar cable interface and an anvil case are included with it. Overall it's in great condition for a 42 year old synthesizer, all pots and sliders work as far as I can tell. It is missing the vinyl binding on the sides of the synth though, but that's purely cosmetic and the case has no rust and only minimal scratches, there are two small dings but are only noticeable if you hold it up to the light."

Polyphony in VCV Host

Published on Sep 19, 2019 Omri Cohen

Starts at 14:30.

"So now that Host is also polyphonic, we can chords and pads with all sorts of VSTs in VCV Rack, and we can also sequence drums and percussion.

If you like what I do and want to support my work, consider joining my crew on Patreon -

Here is the video about Host -"

Boredbrain Transmutron with Plasma Drive & Ring Modulator on Organ

Published on Sep 19, 2019 Boredbrain Music

"Transmutron is at it again in three new experiments! This time it’s splitting a thick organ tone in two, and sending it thru the Plasma Drive and Ring Modulator. The Splitpoint is also controlled by the LFO from the ringmod, in both Fission (Crossover) and Fallout (Notch Filter) modes!

The following gear is used in this video: Boredbrain Transmutron Dual FX Loop Crossover Filter, Korg CX-3 Organ, Gamechanger Audio Plasma Pedal, Moog Music Moogerfooger Ring Modulator, and Boss RE-20 Space Echo."

Extra - add additional paraphonic "voices" to your KORG minilogue xd synthesizer!

Published on Sep 19, 2019 hammondeggs49

"Available at
Consider helping support these projects at

Extra is a custom user oscillator, that allows you to have 2 or 3 paraphonic voices per minilogue xd voice. This allows you to play chords with more notes than 4, up to 12 in some cases! You still have the 4 voice limitation of the hardware, but with each note being able to play 2 or 3, a few more sonic possibilities exist!"

ROLAND MC101 WORKFLOW — making a beat with it

Published on Sep 19, 2019 BoBeats

"today we are making a lofi beat with the MC101. Its available for download for my Patrons:"

BoBeats MC101 videos


Published on Sep 19, 2019 Condukt

"A late night jam with Novation Peak, Elektron Analog Four MKII, Synthstrom Deluge and Nikka from the Barrel"

Patch n Tweak

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