MATRIXSYNTH

Oberheim Director's Chair

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"Great shape. It's from Oberheim offices in the 80's"

Oberheim OB-X 8 Voice Analog Synthesizer SN 804014 w/ Red Calzone Case

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"This is a Mint Condition Oberheim OB-X 8-voice Polyphonic Synthesizer built in 1980. It was purchased from the original owner and fully restored earlier this year by Custom Vintage Keyboards in North Hollywood - They are LA’s premier shop for keyboard restoration and they frequently work with A-List celebrity music clients as they are renowned for industry leading craftsmanship.

Provenance:
This exact synth was used by Greg Hoeltzel of Bob Kuban and the In men. Kuban played drums for Ike Turner, and Chuck Berry and this was very likely used on tour with and played by Ike Turner !!

This is Oberheim’s first 8 voice synthesizer that was pioneering upon its release in 1979 as it predates the Roland Jupiter 8 and was released shortly after the Yamaha CS-80 (1977) . Many other legendary polyphonic synths like the Jupiter 8 were inspired by the groundbreaking engineering present in this instrument. They only made about 700 of these and only a fraction of them have 8 note polyphony (as most have 6 voice) There are very few of these still in existence and in this condition, this is ONE OF A KIND, currently this is the only one for sale anywhere in the known universe."

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12.11.21 Synton Fénix and DD-8

video upload by batchas

12.11.21 Synton Fenix - Formant filter

1986 Kawai R-100 Drum Machine Ad

via Retro Synth Ads where you'll find a full write-up.

"Kawai R-100 drum machine "What good is playing loud if you can't play soft?" full page colour advertisement from page 11 in the November 1986 issue of Keyboard Magazine."

Homemade analog synth built from scratch & a Homemade analog Synth-Guitar by Albert Nyström

video upload by Albert Nyström

"Everything is analog (except the FX) and built by me from scratch.

0:00 - Intro
0:10 - Sync Lead
0:47 - Ambient Pad
1:22 - Bass
1:48 - FM Bells & Noises
2:35 - SuperSaw
3:14 - LFO-Octave Bass
3:42 - Triangle Lead
4:18 - Lasers, Kicks, Snares
4:55 - Weird noises
5:42 - Walktrough of features
9:45 - Pictures"

Some additional details from the comments:

On parts: "My best estimate is around $180 USD, ~70 of which was the Keystep that I used for the keyboard."

On design: "I built everything myself, but took inspiration from exsisting schematics. The filter is based on Mortiz Kleins vactrol VCF, the envelopes are based on Thomas Henrys 555 envelope and the VCOs are built around the AS3340 chip! The effects are the only part I didn't build myself, Search for 'dsp 100 reverb' on aliexpress!"

Homemade analog Synth-Guitar!

0:00 Bass sound
0:50 Saw Lead
2:18 Ambient Lead
3:07 "Guitar" Lead
4:04 Walkthrough

"Fully analog, fully homemade guitar-synth
Built from scratch, based on a few different schematics aswell as a few own designs for some of the functions.
The pitch is controlled by two soft-pots tuned a 4th apart, just like a guitar.

The body is mostly made of stained plywood and the knobs are made of dowels that i cut and sanded to size!

The synth is accompanied by a couple of beats I made on my digitakt!

Hope you enjoy!"

LUSH // HWJ Challenge: Sequential PRO 3 + Push 2 + Virus TI

video upload by Sounds of Synth

"Hey Jammers

This weeks challenge was some lush pads and most definitely NOT any KICK drum!

So here is it is :)

Main Pads - Access Virus TI
Main ARP - Sequential PRO 3
Second Pad Layer - Korg Minilogue XD
Second ARP : Roland GAIA
Cello played on the Ableton Push 2
Percussion and vocals - sequenced on Ableton Live

Hope you enjoy."

Mosaic 1u State Variable Filter Sounds Like Butter!

video upload by Electronisounds Audio

Electronisounds:
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0:00 Example 1
0:51 Example 2
1:31 Example 3
2:18 Example 4
3:25 Example 5
4:01 Example 6
4:50 Example 7
5:21 Example 8
5:59 Example 9
6:28 Example 10
7:05 Example 11
7:33 Ending Slideshow

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Mosaic 1u State Variable Filter Sounds Like Butter!

This filter sounds fantastic! It comes with LP, BP and HP outputs.

It can be anything from subtle to acidic, screaming and extreme!
It self-oscillates beautifully and can also be used as a melodic oscillator.

In this video, I show many examples of what it sounds like with lots of different source material - so you can get a good idea of what it will do for your system!

These Mosaic 1u Modules are all kinds of HANDY!

Whatever kind of music you are making - KEEP IT UP, Friends!
Don't stop making *YOUR MUSIC*!!

LoFi Future //SimpleViz - 8 Bit B/W Audio Visualizer

video upload by LoFiFuture

"Available to pre-order: https://www.lofifuture.com/storefac96...

Special Edition Model, only 50 units to be made in this format! All //SimpleViz orders will be shipped in may 2022! After that it will only be available as a DIY kit in a bare PCB format!

The //SimpleViz is a 8bit digital audio visualizer with a black and white composite output (NTSC or PAL) and a mono line audio input. It is inspired by early video games such as pong as well as basic video mixer wipes!

It is built & programmed with the popular Arduino IDE and is powered by an atmega 328 at its core.

Three audio reactive paterns can be selected and combined, each pattern also has a black fill mode, white fill mode and negative fill mode.

There are three control knobs, one for the audio input level, one for the audio input response (adjusts the lag and snappiness) and a third control for refresh rate, turning this knob up reduced the speed the screen is cleared, producing cool repeat effects.

Specifications:

-5V DC power in

-B/W Composite video output (NTSC & PAL)

-Mono 3.5mm line audio input

---Ships in May 2022!---"

EMS Synthi AKS 73' Vintage Synthesizer

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Pics of the inside below.

"This beautiful AKS was restored and serviced recently. The shape is very good thinking that is an instrument of near 50 years. Some marks of use and time can be seen, take a look the pictures for close detail. But maybe you know that is very difficult to find this kind of instruments with no marks of time or use. Most important is that this unit was never modified, is full original condition with no drills or non reversible modifications that you find in another units usually seen. This unit looks and works like the original. Also includes the very interesting prestopatch socket. This is definitively the best Synthi A version with this features, finish and wild vintage sound.

Some service details are:

Deep cleaning of all electro mechanic elements, potentiometers and switches. All original potentiometers recovered and working smooth now.

Full polarized recap service, any vintage EMS with original polarized capacitors have surpassed the life span, must be replaced. With this service enjoy more decades of reliable capacitors. Taking care carefully of the compatible values and parts for ensure the original behaviour and sound.

Replaced crackled film capacitors. Some vintage EMS suffers from crackle polyester capacitors that need to be replaced for ensure good work. When requeried, new fresh polyester capacitors are used for this replacement

All bad/crap original trimmers replaced with good quality ones. Added precision multiturn potentiometers at VCO tracking for very musical close matching.

Temperature compensation for VCO 1 and 2 following the EMS bulletin. Now the track and tune keeps very stable for long sessions. Finally is possible to play it musically precise.

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