MATRIXSYNTH


Friday, May 02, 2025

Dynacord ADD One & ADD Drive Curtis filters

Note: Auction links are affiliate links for which the site may be compensated.


via this Reverb listing

"A chance to own a complete ADD One set which is rare. I have had two half of these units (last sold for £2750/19) as it proved very difficult to obtain a complete set; here is your chance to bypass all of that. |

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Very esoteric piece of kit, 8 channels of audio, 8x analog CEM 3389 Filters - quicksilver sound. 50khz sampling rate, de-emphasis and it has 4x 'smash' gain compressor on input too.

Each voice has separate pitch, LFO, filter, env control and the separate pitch, very tape like (8x separate DACs/clocking), in particular opens up lots of possibilities

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Designed by the team that made the Oberheim Xpander (& Matrix 12) so it has a very modular structure, lfos, envelope, modifiers etc - unique.... far more than a drum machine. USA design teamed with West German engineering!

Calibrated (see photos of tests completed, satisfactorily), latest firmware installed, buttons tact switches (soldering req'd) replaced and VFD screen installed. New battery, in a battery pack (so you can change it yourself) installed too. Interface cable is new also, i made one up with new connectors - the cable is not cheap.

Replacing the tact buttons is not easy either - before someone says this is listed for too much. Nor is placing a VFD screen, or cleaning out the disk drive, upgrading the firmware etc. Ensuring it works all the time and every time.

Panning function, per voice, has been fixed too, most units people have will not have correct Pan it requires repair to the voice-card.

VFD is expensive, from Japan, no longer made and this is a new VFD last of a line.

Arrives with factory samples on disk, other samples I have made, and programs loaded into the memory - the programs are lost from most units on sale as internal battery has died.

Used by JMJ and others - he refers to it as 'Dynacord Addi' on listings to CD. Some of the drums on Zoolook are dynacord the ones that ripple (repeat very fast) and change in pitch. Also Prince.

Pricing (past sales) : £4114, LA, June '24, £5,000, Germany 2023 - that was one of my former units, sold on by the buyer. Open to offers, exchanges as ever."

Chompi and Strymon BigSky MX


video upload by Luca Longobardi

"Life is not like water. Things in life don't necessarily flow over the shortest possible route. (H. Murakami, 1Q84)

This live session was recorded using the Chompi and the Strymon BigSky MX. Ideal for deep focus, meditation, and late-night inspiration."

SCJS#52 Raining Beads - take 2


video upload by FL3SHB4CK

"Small Case Jam Sessions #52 Raining Beads - take 2

Battering Ram
Bean Jelly
AHH
Beads
Splish
Startup

Recorded live via Syntakt inputs + delay & reverb"

Elastic OSC Jam with Red Sky Lullaby Presets


video upload by Oliver Greschke

"Elastic OSC will get released 5.5.25 !! 🥳
In this short noodle, I play with the presets created by Red Sky Lullaby. The Arturia MicroFreak is used only as a MIDI keyboard, all sounds and effects are generated by Elastic OSC itself.

Elastic OSC is a synthesizer app based on the DSP code of the Mutable Instruments Plaits hardware oscillator module, one of the most beloved (and cloned) oscillator module in the Eurorack modular scene! While Plaits is monophonic, Elastic OSC can also be used in 8-voice polyphonic mode. This means you can use it either as a sophisticated, experimental monophonic sound source — like the original — or as a regular polyphonic keyboard with a wide variety of great sounds. Of course, you can also combine both approaches!

Elastic OSC is designed for playability and simplicity – similar to the Plaits hardware, which has 4 Main Knobs for all essential Synth Parameters. Elastic OSC is essentially a one-screen app with no menu diving. It features two XY pads for intuitive sound manipulation of the OSC engine and the effects. Despite the simplicity of the clean interface, the sound possibilities are vast. Under the surface you’ll find 24 different oscillator models and the ability to automate parameter changes, as it is possible in all Elastic apps."

Hachi live setup


video upload by Mike Perkowitz

"A brief clip using my Hachi sequencer (firmware on a custom Yaeltex controller) with drum kit and synths on Daisy Patch and other modules"

Buchla Electric Music Box Series 200 System 101 151 Brochure

Note: Auction links are affiliate links for which the site may be compensated.


via this eBay listing

Additional Tone Tweakers Listings

Moog Synthesizer Model 12 Modular System Spec Sheet Ad

Note: Auction links are affiliate links for which the site may be compensated.


via this eBay listing

Additional Tone Tweakers Listings

Erica Synths - Perkons HD

Note: Auction links are affiliate links for which the site may be compensated.


via this Reverb listing

Additional NOISEBUG Listings

ARP Omni 2 Analog Polyphonic Keyboard Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.


via this listing

Additional Perfect Circuit listings

Hohner Skyline Sixtyone P

Note: Auction links are affiliate links for which the site may be compensated.


via this Reverb listing

Demo in the listing previously posted here.

"Very good condition vintage analog synth with built in drum machine. See video of this exact unit for sound demo. Comes with original case. No legs. Requires voltage converter as this was made for the European market"

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