The String Quartett of the Day (Sequential Prophet X)

video upload by Grubenpony12

Sequential circuits TOM Drum machine  HK design cartridge 

video upload by Dj Juan G

"testing out my new cartridge from HK design. 8 banks 7 voice per bank. 808 Kit on this video."

Ultratroninator 3000 Zoxnoxious Analog Synthesizer

video upload by Ultratroninator 3000

"Demo of the 'beyond obnoxious' Zoxnoxious analog synthesizer with 6 voice cards installed. The installed cards:
* Dual VCO synth voice
* VCO x4
* Analog signal processor (VCF/VCA)

After some software updates I'm able to install up to 6 voice cards. Taking advantage of it here. This is more a proof of concept demo than anything else: certainly someone with some musical talent could do something much better than this.

Video shows each card being added to the Audio Out backplane, system turning on (look! LEDs!), then a close-up of each module in VCV Rack.

In development / coming soon:
* Z5524 dual VCO synth voice (SSI2130 VCO + AS3394 synth-on-a-chip) demo
* CPU auto-tune functionality"

Demo: AS3394 Waveselect Modulation


"AS3394: synth-on-a-chip. This is Alfa Rpar's clone of the CEM3394, the same chip used in the Sequential Six Trak and other 80s synths. What's new here? The '3394 has a input pin to select the VCO waveform. How about modulating that input at audio rate? Switch between tri, saw, tri+saw? Here is a demo of audio rate modulation.

Video shows some ways that could be used for modulation. Either by varying the modulation amount (LFO, envelope), or by varying the modulator (sync, pitch) a variety of effects are possible.

The completed board will use an SSI2130 as a second VCO as a modulator. This demo is bit of a hack in using an external VCO for the same purpose.

Interesting effect? Usable? Noise? Drop a comment on your thoughts!"

AS3394 - Audio Rate Waveselect Modulation


"Demo of the working part of this synth voice card: the AS3394 synth-on-a-chip. Beginning of the video I jumper a '3340 VCO to where the eventual SSI2130 will be on the board. This VCO is used for modulation of the AS3394, in this demo the waveselect modulation.

The "Half-Working" is a bit of a self-jab. The card is missing an SSI2130 which needs to be soldered on. The card as used is functional, less a second on-board VCO."

Ultratroninator 3000
"Developing projects around Raspberry Pi, synthesizers, retro devices. Demo videos of the Zoxnoxious analog synthesizer."

Acid on camera

video upload by Desire Machine

"Acid on camera,
an improptu acid hardware jam with TD-3 , Drumbrute , Alpha Juno 2, and many modules , including M.I. Clouds as a send fx, Vermona Mono Lancet for the Bassline, Neutron oscillators sequenced from Beatstep Pro and then directly fed into Intellijel uVCA."

Octatrack MKII sequencing Peak Novation Live jam.

video upload by Onyx_track

MC-707 & Prophet-6 machine Live (IN_Synk)

video upload by Mush

"先日初めてマシンライブを行った際のライブ動画です
マシンライブ・ライブコーディングパーティ「In_Synk」に参加してきました！"

"This is a live video of the first machine live the other day
I participated in the machine live live coding party "In_Sync"! "

Roland SYSTEM-8

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This one is listed for a bit lower than most. Posting this for a reader of the site whose videos have been featured here. Please note if you'd like to submit auction posts you need to be a supporting member of the site.

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Custom Original 3 Voice Oberheim SEM System

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"Custom original 3 voice sem. Rare occasion to get your Oberheim Modular. If 4 voice is too much and 2 voice is too little this is the one for you. The 2 voice Oberheim doesn’t have a global filter control Like the 4 voice. You can do it with this one simply play the 2 sem and send the signal into audio in of the third sem and voila.

The sequencer is a copy of the original with extras ( noise generator + plus mute triggers)

Was placed in a cabinet with a chipped corner, I was suppose to put it in a real wood cabinet but I didn’t have time to make one. Can be a great project. The three sem work perfectly And sound amazingly good. Great modulation just check the patch possibilities on the picture.

GRPA8, Multi Echo, Boss delay, roland reverb not included"

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Moog Source w/MIDI Encore Kit SN 3518

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"Just serviced and ready to go. Moog Source with the rare (and only) encore midi kit. This expands the presets to 16 banks of 16 and let's you sync via midi and send notes over midi."

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Circuit Bent Computron Talking Computer Synthesizer w/ Hannah Montana Sticker

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You can find demos of one in previous posts here.

"Get ready to experience a unique blend of music and technology with this amazing Circuit Bent Computron Talking Computer! This synthesizer is perfect for those who love to experiment with sounds and create something truly unique.

With its circuit bent features, this synthesizer produces a wide range of glitchy noise and distortion effects that will take your music to the next level. It is perfect for musicians and producers who want to add some experimental sounds to their tracks. Get your hands on this incredible synthesizer today and start creating music that is truly one-of-a-kind!"

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