Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
Wednesday, October 29, 2025
Korg M3R Rackmount Sound Module SN 003424
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
RX12 Spectr Digital Rhythm Programmer | Ultrarare Post-Soviet Drum Machine
Note: links to listings are affiliate links for which the site may be compensated.
video upload by Red Star Melodies
This appears to be the first one to be featured on the site.
via this Reverb listing
"The device was produced in Zhytomyr in early 1990s. It was not a mass-produced product, so this device is very rare.
It has 64 rhythms. You can change the tempo of each of them
Also, it has a «second pattern» mode that can add 8 additional drum brakes between drum loops
The drum machine has 10 sound turning on by pushing the buttons: timbale, tom, clap, rim, snare 1, snare 2, tom 2, closed hihat, crash (the crash does nor works)
You can control the sound of snare with a fader
Also the device has and «avt» button. By pushing it together with drum buttons you can add them to the sequence in auto mode.
The device has inputs for external drum pads."
video upload by Red Star Melodies
This appears to be the first one to be featured on the site.
via this Reverb listing
"The device was produced in Zhytomyr in early 1990s. It was not a mass-produced product, so this device is very rare.
It has 64 rhythms. You can change the tempo of each of them
Also, it has a «second pattern» mode that can add 8 additional drum brakes between drum loops
The drum machine has 10 sound turning on by pushing the buttons: timbale, tom, clap, rim, snare 1, snare 2, tom 2, closed hihat, crash (the crash does nor works)
You can control the sound of snare with a fader
Also the device has and «avt» button. By pushing it together with drum buttons you can add them to the sequence in auto mode.
The device has inputs for external drum pads."
Formanta Arton VS-34 ultrarare USSR Vokoder synthesizer | Синтезатор Артон ВС 34
Note: links to listings are affiliate links for which the site may be compensated.
video upload by Red Star Melodies
"For sale on Reverb!
Very rare synth for sale! only 50 pieces were produced
Fully working condition. The video of the work of this device is included.
The device was made by author of famous Polivoks Synth Vladimir Kuzmin.
Synthesizer Arton VS-34 (Vocal Synthesizer 3-octave 4-voice) is a modification of the Maestro synthesizer, designed specifically to imitate the timbre of the human voice.
Synthesizes the vowel sounds "A", "O", "U", "I" of the male and female voices by the formant method, can create articulatory effects. It has the same arpeggiator as the Maestro, as well as a controllable filter and a choir sound device. The joystick allows you to achieve a special expressiveness of the timbre of the voice."
via this Reverb listing
video upload by Red Star Melodies
"For sale on Reverb!
Very rare synth for sale! only 50 pieces were produced
Fully working condition. The video of the work of this device is included.
The device was made by author of famous Polivoks Synth Vladimir Kuzmin.
Synthesizer Arton VS-34 (Vocal Synthesizer 3-octave 4-voice) is a modification of the Maestro synthesizer, designed specifically to imitate the timbre of the human voice.
Synthesizes the vowel sounds "A", "O", "U", "I" of the male and female voices by the formant method, can create articulatory effects. It has the same arpeggiator as the Maestro, as well as a controllable filter and a choir sound device. The joystick allows you to achieve a special expressiveness of the timbre of the voice."
via this Reverb listing
Quick Jam with OP-XY and Vongon Replay
video upload by Ösla
"Adaptation of Afternoon by Ösla for opxy and vongon replay. Hear the full song here vvv
https://open.spotify.com/album/7mOeMf..."
Synthesizing with Moog | Lesson 4: Resonance
video upload by Moog Music
"In 1964 the modular synthesizer was born, and one of its signature components was the Voltage-Controlled Filter. While different oscillator shapes could create a bed of tone and harmonics, the Voltage-Controlled Filter allowed musicians to sculpt a distinct sound out of all those harmonics and even shape that sound over time. A key component in synthesizing existing sounds, the Voltage-Controlled Filter was also capable of creating sounds no one had ever heard before, giving birth to whole new genres of music and defining the sound of electronic music to this day."
You can find additional Synthesizing with Moog | Lesson posts here.
Roland JX-03 Demo
video upload by Panu M Savolainen
"Multitracked demo of Roland JX-03 botique. External fx Eventide Space and Waves delay used."
u-he CEN2RION – Scanning Mixer in action (no talking)
video upload by u-he
"Using four individual oscillator signals (from CVilization in 4-Osc-Mode) to feed CEN2RION's outputs A and B with different mixes. A and B are routed through separate filters and FX, creating two voices to jam with. More info on our Eurorack module CEN2RION here: https://u-he.com/products/cen2rion/"
Jam - Arturia Minibrute 2S and Eurorack w/ Scrapcode Modules
video upload by Scrapcode Modular
"A little jam making use of my new @ArturiaOfficial Minibrute 2S and Eurorack rig.
Kick and bass are being generated and sequenced by the 2S, while pad and bleeps are a mixture of @scrapcodemodular AXIOM, WONK and (prototype) QUORD, running through a Doepfer Quad-Filter and @Dreadbox-synths Psychosis.
All sounds created live and recorded directly from the rack - the only post-processing is a gentle limiter and level boost."
A big box with even bigger sounds! Introducing BM-18M CLUSTER BOX
video upload by Behringer
"Adam Husk presents the BM-18M CLUSTER BOX, a compact modulation pedal that blends classic chorus and flanger tones with deep creative control. Switch easily between chorus and flange modes using the range rocker, then shape your sound with Drive, Output Level, and a dry/wet mix.
At Behringer, we believe in pushing the boundaries of music technology to make high-quality gear accessible to everyone. Our mission is to empower musicians at every level by delivering innovative tools at a fraction of the cost—without compromising on sound or performance."
Classic Modulation, Reimagined
The Behringer BM-18M CLUSTER BOX is a modulation powerhouse that blends the warmth of classic chorus and flanger tones with a modern edge. At its core, a simple range rocker lets you switch between lush chorusing and sweeping flange textures—but the CLUSTER BOX is anything but basic. Whether you're chasing vintage shimmer or pushing into wild, unpredictable territory, this pedal is built to inspire.
Deep Control, Limitless Texture
Beyond the familiar sounds lies an expressive control layout designed for sonic sculpting. Shape your tone with adjustable Drive and Output Level for analog-style saturation, or blend dry and wet signals to taste. A six-shape LFO selector lets you modulate Rate, Amount, Delay, and Feedback in highly creative ways—while a dedicated tap-tempo footswitch keeps your modulation locked to the groove.
Modulation Meets Modularity
From pedalboard to modular rig, the CLUSTER BOX opens up a world of routing possibilities. Control key parameters via CV, MIDI, or expression pedal, and sculpt your effects further with a dedicated feedback insert loop. USB-C integration with the Guitar Tribe App adds even more flexibility, while stereo output with DIP switch customization ensures the pedal plays nice with any setup—guitar, synth, or studio.
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MATRIXSYNTH - EVERYTHING SYNTH
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH






























