MATRIXSYNTH: Monday, July 20, 2020

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Monday, July 20, 2020

DIY ARP 4072 Lowpass Filter (ARP 2600)

Preview of latest circuit: The ARP 4072 Lowpass Filter (ARP 2600) MrCaliforniaD

"Version 1.0 is working like a charm.

Once in a proper enclosure, I'll try to record something more substantial.

Thanks to Eddy Bergman for his unconditional support.

You can visit his website to get the schematics. Also check out his other awesome projects while you're at it:

I don't sell theses modules. Sorry!"

Some details via Eddy Bergman's website (note the schematic is from YuSynth):

Wednesday, 4 March 2020

Synthesizer Build part-21: ARP2600 LOWPASS FILTER (4072).

The best sounding filter of any I built so far! With verified stripboard layout.

A word of warning right at the start; this is an advanced project, not for beginners. You need to know your electronics and you also need to have a good multi channel oscilloscope.

Roland CMU-800R real demo with AppleII interface.


"This is the basic overview of CMU-800R capabilities and Apple II software driving it. Less talking and actual demos."

Making a Circuit Board Soldering Jig for the Super Sixteen


"With a big job of PCB soldering ahead of me, I decided to make the task a little easier and more repeatable by building a jig to hold the various parts in place while they're being installed.

In the past I've done this by attaching and removing the front panel by its various threaded fasteners, which can be fiddly and time-consuming. This simple home-made jig allows quick and easy alignment of all the critical parts and will hopefully allow me to build up complete modules much faster."


via this auction

EHX Grand Canyon meets Roland JD-XA Analog Crossover Hybrid Synthesizer

Rik Marston Official

#rolandjdxa #electroharmonixgrandcanyon #analogsynthesizer
"EHX Grand Canyon meets Roland JD-XA"
Synthesizer Demo by Rik Marston
***Watch in HD!!*** **Turn It UP!** ***No Talking!!!***

The Electro-Harmonix Grand Canyon meets the Roland JD-XA!
This is a simple BASS to Sci-Fi FX Demo. The Grand Canyon is in
MOD mode, modulation is added with Trails & Ping-Pong.
This is the coolest unit for delay FX I have used in a while. GET ONE!
I had G.A.S. the moment I saw the Grand Canyon! It is A+ on my list!
And of course themeets Roland JD-XA is very awesome!


Ramón Amezcua


Ramón Amezcua



Ramón Amezcua


DIY analogue synth project ( Ad-vantage 03M Guide and sound demo Part 2)

Adamski A.

"Just a follow up vid on the AD-3M's main functionality and features which I had left out , last time round."

See the Adamski Ajull label below for more.

Sequential Artist Spotlight Interview with MODELING

You can find the interview on Sequential's website here.

Modeling is a 3-piece, synth-driven electronic group comprised of brothers Connor, Ryan and Cuinn Brogan based out of Fayetteville, Arkansas. The band focuses on creating songs inspired by films, photos, memories and fictitious dream worlds. Currently, they’re writing and producing a 6 track EP inspired by a non-existent dystopian world to be released sometime in 2020.

We chatted with Cuinn on how Modeling has been using the Prophet Rev2 and OB-6 in their music.

You can find additional posts featuring Sequential's Spotlight series here.

Dave Smith Instruments OB-6 Synthesizer + Strymon BigSky Reverb Pedal

Mitchell Rays


Dave Smith Instruments OB-6 Synthesizer + Strymon BigSky Reverb Pedal
OB-6 Synthesizer + Strymon BigSky Reverb Pedal
Sequential OB-6 + Strymon BigSky Reverb Pedal
OB-6 Sequential Dave Smith Instruments (Unboxed and Sound Demo)

"The Sequential OB-6 Module 6-voice Polyphonic Analog Synthesizer Module routed through a Strymon BigSky Reverb pedal. Sequential is the new name replacing the old name Dave Smith Instruments. For some reason online retailers such as Sweetwater had it labeled under Dave Smith Instruments still. So not sure what the deal is, buuuuttt this Synthesizer is a beast! Definitely worth the money!"

SoundsDivine 'Ambient Worlds' - U-he Hive Soundset


"This is a demo of the presets from the 'Ambient Worlds' soundset for U-he Hive.
For more information, please follow the link below:

00:00 Intro
00:10 Big Sky Country 1
00:47 Twinkling Lights
01:25 Atomic Anomaly
02:03 Big Sky Country 2
02:39 Dark Side Of The Machine
03:14 Elysium Tears
03:51 Ambient Worlds
04:25 Mysterious Melody

#u-he #hive #presets"

m3ld by Takla Makan

New music from Tony Allgood, the man behind, featuring the following:
Oakley Modular both 5U and Euro
Roland Alpha Juno 2
Novation Summit
Oberheim OB-Sx (mostly preset C3 and small edits thereof)
Oakley SRE330 ensemble and ADR30 delay effects
"Takla Makan is the artist name of Tony Allgood.

During the 1980s Tony played keyboards in a variety of bands including 'Cairo' and 'Not Before Time'. In 1986 he started producing his own synthesizer instrumental music under the name 'Takla Makan'.

His musical output is very much inspired by the work of Mike Oldfield, Vangelis, Jean-Michel Jarre and Tangerine Dream."

"I've got an overdrive module and I'm going to use it."

m3ld, pronounced 'meld', features two long format tracks, one in Dm (the saddest of all keys) and the other in Cm. And, yes, I probably did over do the overdriven synth lead sound on these two pieces. I just love a sawtooth VCO going into a highly resonant filter which then feeds an output limited high gain amplifier. There's something about the simplicity of that plaintive solo sound which gives it a wonderful and emotive ambience. I've long been inspired by the work of Mike Oldfield, and although I can't play guitar to save my life, I can't help but try to mimic the feel of his solo guitar work.

The other sound that I really like, and I've used it several times before as well as on m3ld, is the airy short vocal sound from the father of sampling, the Fairlight CMI. It's a 'preset' called 'ARR1'. When I was 15 I so wanted a Fairlight. Not only because Mike Oldfield and Jean Michel Jarre had one and it could do that sound, but also because it had a cool lightpen and a screen that had lots of wavy lines on it. Sadly, although I have fixed a few CMIs as part of my old day job, for my own compositions I have had to use samples of the real thing.

When I was younger I would spend hours writing album cover notes. And, at the end of these notes, would be the obligatory gear list. With pride I would write down a variety of home made gadgets (making them sound really quite mysterious) as well as my little Moog Rogue, Amdek RMK-100 and Roland RS-09. These days, I could write my gear on the back of a postage stamp; a small Oakley Modular, a Nord Lead A1, and a bunch of plug ins. However, for plug ins notable mention must go to U-He's Diva, Repro and Colour Copy, Synapse's The Legend, and Valhalla's Ubermod. Kids today don't know how lucky they are.

released July 16, 2020

Music composed and produced by Tony Allgood

1979 DSD Dual Mode

Todd Barton

"This is the third in a series of demos and tutorials on the new Buchla format 1979 Digital Stereo Delay from
Today I look at the Dual Mono Mode. More to come.
Big thanks to all my patrons that help make these videos possible at"

Todd Barton 1979 posts

TunnelVision - Glitch Hop / HEAVY Electro Jam (Novation Circuit)

Gabe Miller Music

"A bass heavy glitch hop / electro / midtempo dubstep/ drum and bass jam on the Novation Circuit, made with DreddSteppa and my free drums pack."

Roland SH-09 Bass Sequence

Björn Fogelberg

"This is what a fully working SH-09, an analog monophonic synth from 1980 sounds like, when the sliders have been cleaned re-lubed. It's deep and rumbling in a way that I never have heard before even though I have owned this synth since the late 90s. Oh, and yeah I have also modded it so that I can use the Ext slider to hear noise. It's a very simple mod to make.

I just made this little sequence on my Arturia Beatstep Pro and connected it to the SH-09. No effects, filters etc was added to the recording. The only thing I adjusted was turning up the volume in the parts where I used filter resonance, which automatically turns down the overall volume."

Behringer RD9 Prototype Roland TR-909 Clone Currently on Ebay

via this auction

"Behringer RD9 (909 Clone) Drum/Bass Machine. Prototype. Condition is New. Dispatched with Royal Mail 1st Class."

Waldorf Streichfett String Synthesizer w/ Custom Purple Knobs & Demo Sticker

via this auction

"I put some custom purple knobs that were easier for me to use and it adds to the look. Also added the demo sticker to the front side panel when i got this and tore the ends for style. I like my instruments unique. The underside has some wear do to the rack i had it mounted to which does not affect the unit what so ever."

Korg MS-20 Analog Vintage Synthesizer SN 141567 w/ Original Case

via this auction

Looks like this one was listed back in 2016.

Korg MS-10 Analog Vintage Synthesizer SN 130410

via this auction

Roland Jupiter-6 SN 311673

via this auction

Acidlab Bassline 3 Silver

via this auction

"Best 303 clone in the market. I even think it's better than the original based on ease of programming and its sleek design. The metal knobs and circular buttons are a joy to use. Never left the studio, comes with original packaging."

Roland System-100 Model 104 Vintage Analog Sequencer Module Mint Condition w/Original Box Packing SN 510697

via this auction

"FUNCTIONALITY: No double-triggering of switches. All knobs move smoothly with no dead spots. Everything works as it should. No crackly pots. All knobs/ pots/ sliders/ switches/ LED's function as they should. The pots are smooth and have that as-new resistance when you turn them. It is calibrated and working as it should. All functions work properly. It is a 117volt sequencer, made and sold for the North American market.

The physical appearance is extremely clean. On most System-104's, the grey buttons show sun damage, and appear yellow. These buttons are the original gray, and look awesome. This is a collector's quality sequencer. The face is practically flawless with only a couple tiny marks. The knob inserts are very shiny and clean. The aluminum side panels are very clean, as well as the tolex material and black plastic insert. The case is nearly flawless top and back, and super clean inside and out. Side panels are clean as well. See photos for exact description. This is one of the (if not the) cleanest System-104's for sale right now and is priced accordingly.

Included is the System-104 and power cord (attached). Also included is the rare original Roland box, 117volt branded Roland tag, case foam and inserts to protect it. Box is not perfect, but is very rare, and protects the sequencer well.

Overall, a very nice and clean System-104 in perfect working condition."

First patches with the Synthesis Technology E520 Hyperion Effects Processor // Lush Eurorack FX


"Here’s the final released version of the E520 Hyperion Effects Processor from Synthesis Technology. It’s been great to explore this and film my first patches playing with the release version after initially exploring an earlier prototype (links to that below). This video looks at 7 algorithms exploring different patches and some of what the E520 offers. Future videos will explore the algorithms in detail in my usual ‘deep dive’ style looking at the time based and spectral based effects.


00:00 Hello & patch previews

0:58 E520 run down, video layout, other resources

01:41 Algo: Pattern Delay - DNB / Jungle beats

01:49 Algo: Pattern Delay - exploration

02:29 Algo: Pattern Delay - melodic patch

03:07 Algo: Frequency Shifter - west coast harmonic playground

04:20 Algo: Spectral Drone - windy reverberant washes

04:48 Algo: Diffusion Flanger - lush textures and ambience

06:04 Algo: Spectral Time Machine - live vocal mangling!

07:15 Algo: Chowder Delay - beat chops, stutters and reverses

08:21 Algo: Phaser - rich stereo modulation"

E520 Hyperion posts

Moog ONE - Singularity Vol 2 - Patches 65 to 96 - GEOSynths


"Out 24th July 2020 -

3rd of 4 Videos highlighting Patches 65 to 96 for my follow up Bank for the Moog ONE - Singularity Vol 2. All Patches are demonstrated using Firmware v1.4 and consist of lots of Pads, Motion Textures, Leads, Bass, Keys, Poly etc. Many use 2 or 3 Layers, though there are many single layer sounds for maximum polyphony."

GEOSynths Moog ONE posts

Second Patch - Korg ARP 2600 Semi-Modular Synthesizer - All Playing, No Talking!

Richárd Zalai

"Check out my second patch with the amazing ARP 2600 by Korg.

Feel free to contact me:"

Richárd Zalai ARP 2600 posts

Modular Monday: QD (Quad Drum Voice)

Red Means Recording

"It's 4! Drum! Sounds! But also samples! And synthesizers! It's good! Let's check it out!"

Siel CTS-2000 quick demo

Valmont / Mooggy

"Minute of CTS-2000, a very rare hybrid italian synth from the mid eighties :D
Thinking about making a VST of this synth, but there are so many wavetables... The work ahead's gonna be long and boring!
Other demo I did with it:" [posted here]

Review: ATOM SQ and its innovative offset pads // 3 pros & cons w/Ableton Live & Presonus Studio One


0:00 Intro
0:20 The offset pads
1:00 Overview
5:20 Connectivity
6:10 Arpeggiator
8:05 MIDI features
10:55 Ableton Live
12:05 Session control
13:15 Overall control
14:00 Device control
15:35 Custom control
16:00 Studio One
17:00 Device control
18:35 Sequencer
19:55 Pros & cons

Modal Electronics Argon8


VERMONA PERFOURMER MK2 chord progression till HEAVEN - ITA

Muhn Channel

"A short demonstration of vermona Perfourmer .. one of the best synth ever made."

VERMONA PERFOURMER MK2 chord progression till HEAVEN - ITA

Somber 2600 - Korg ARP 2600

Marshal Arnold

"Using the wonderful Korg ARP 2600 synthesizer I was paying around a bit and recorded this short audio demo. It has quite a somber tone but sounds quite lovely with the spring reverb."

Behringer Teases New ARP 2500 Eurorack Modules & System

This one was spotted and sent in via Soviet Space Child.


Module 1003 Dual Envelope Generator
Module 1032 Dual Envelope Generator
Module 1016 Dual Noise/Random Voltage Generator
Module 1050 Mix - Sequencer
Module 1027 Clocked Sequential Control
Module 1004 Oscillator
Module 1005 ModAmp
Module 1004 FiltAmp
Module 1036 Sample & Hold - Random Voltage
Module 1047 Multimode Filter / Resonator


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

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