MATRIXSYNTH

Saturday, May 23, 2026

Sequential Circuits Prophet 5 Rev3.0 Analog Polyphonic Keyboard Synthesizer SN 1697

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


via this listing

Additional Perfect Circuit listings

Yamaha FX-1 Vintage full size Dual 61-Key (one owner) good condition

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


via this eBay listing

"The Yamaha FX-1 Vintage full size Dual 61-Key is a rare and sought-after synthesizer with a unique feature: two 61-key boards plus a 32 mini-key third board. This semi-weighted keyboard offers a full pedal organ synth experience with MIDI input/output ports for connectivity. Made in Japan by Yamaha, this hybrid analog/digital instrument has a display screen for easy navigation. With only one owner and in good condition, this vintage gem is sure to delight any musician looking to add a piece of musical history to their collection. Includes stool and pedals. Not used in many years. Has been in dry storage."

Likely in a van down by the river...

Sonicware Liven 8bit Warps 27-Key Synthesizer Groovebox SN 010-000774

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


via this Reverb listing

Additional SYNTH CITY Listings

"● 8-bit waveform memory synth engine for creating a wide variety of sounds from Chiptune to Ambient

● Four distinct 8-bit waveform memory synth engines (Includes waveform editing with waveform capture function)

● Unique sound creation with aliasing noise on/off, detune and sweep functions

● 128-step sequencer with parameter locking

● 4-track looper for recording internal audio and external audio from the line input

● 10 effects and 6 reverbs (switchable to the Cassette tape simulator)"

Analog Trinity - Dreadbox Erebus, Nyx & Moog Mavis


video upload by Stefan Torto

"Jamming with Dreadbox Erebus, Nyx and Moog Mavis.
Sequencer Korg sq64, groovebox Roland mc101 and Korg NTS-1 as fx unit.
My music : https://stefantorto.bandcamp.com/
Get my sample packs : https://www.stefantorto.com/sample-packs
Website : https://www.stefantorto.com"

Lost gear: The coolest sequencer you have never heard of


video upload by The Sound Convergence

"Lost gear highlights modules that had some really interesting ideas but are not available anymore.

Today, we are looking at the ioLabs Flux and it's streamlined approach to time compression and expansion for trigger sequencing.

0:00 Intro
01:14 Basic Functionality
01:57 Time Bending!
02:44 Fine-tuning temporal compressions and other functions
03:43 Humanisation
04:10 Microtonality and Quantisation
05:16 Patch 1
05:50 Patch 2
06:20 Patch 3
06:44 As an oscillator
07:12 Final thoughts"

See the IOLabs label below for additional posts.

Dreadbox Artemis firmware update 1.2 – new BBD effects


video upload by Sinevibes

"Dreadbox Artemis firmware update 1.2 is coming very soon! And here's a preview of the new BBD resonator and BBD playground effects which we've added to its Sinevibes effects collection."

HARMONICONSTELLATION - OVERVIEW


video upload by A Magic Pulsewave

"MIDI EXPANDER, HARMONY COMPUTER, AND PRESET SYNTH FOR AMP DEVICES. www.melodyoracle.com

HARMONICONSTELLATION is a 3 channel AMP LINK to MIDI expander and harmony computer, with built-in three channel preset synthesizer. Converts AMP Obliquencer, Melody Oracle, Touch Tones, and Star Song to 3 channels (or up to three voices on one channel) of MIDI control signal.

Master settings control root note and mode, to format the incoming AMP control stream to a set of MIDI note values within a specified scale (9 harmonic modes over the full chromatic range). Each channel has Octave and Harmony Offset settings, creating spontaneous harmony to the incoming note stream, within the scale set by the master settings. CV inputs (0-3.3v, diode protected) for Octave and Harmony Offset on each channel allow modulation from Obliquencer CV outputs or other CV sources. Octave and Harmony Offset selectors become CV attenuators when jacks have been patched.

HARMONICONSTELLATION outputs MIDI master clock if connected to Obliquencer or Melody Oracle, allowing MIDI sequencers and drum machines to sync.

Each TRS MIDI output carries all three internal channels over MIDI, and each channel can be routed to any of the 16 MIDI channels using the recessed touch controls.

Built-in polyphonic, multi-timbral synthesizer output creates an audio preview of your sequences without needing to connect an external MIDI synthesizer. 16 preset sounds, with a variety of waveform and envelope profiles, correspond to the MIDI channel settings.

Multiple HARMONICONSTELLATIONs can be chained to control additional synthesizers. Can also be chained with AMP Expandoor and Wave Expander.

SPECIFICATIONS:
Connection: Shielded connector RJ45, ethernet cable.
Dimensions: 8.66” x 5.25” x 3”
Power: Bus power, no additional power supply required
MIDI Output 3.5” TRS Type A
CV inputs: 3.5mm 0-3.3V unipolar diode protected."

Poly 61 rack mount with editor added


video upload by Craig Barnes

"This is an upgrade to the Poly 61 rack mount synth that I built from eBay parts last year. It was always staring at me asking, 'where is my editor'. So I finally gave in and created this.

The code and schematics are here.

https://github.com/craigyjp/Poly-61-e..."

Kiviak Instruments interview Superbooth 26


video upload by Take the Fear out the Gear

"Hi everybody this time we bring you the Kiviak Instruments interview at Superbooth 26

website https://kiviak-instruments.com/

WoFi
This portable lofi synthesizer transforms any sample into a unique sound.
With its Texturer engine and intuitive interface, WoFi blends sampling and synthesis for limitless creative exploration.

Its compact size and rechargeable battery let you play, compose, and create wherever you are.

The WoFi integrates easily into any setup. Its extensive inputs, outputs, and seamless connectivity make it easy to record samples, share your patches, and explore new sounds.

Whether you’re a beginner or a pro, WoFi offers you endless possibilities."

Friday, May 22, 2026

The Delay - TC Flashback Triple, Oberheim OB-6, TRex Replicator, Strymon Cloudburst, Ibanez M80M


video upload by thesrabbit

"I was gonna call this "Lords of O'Brien No. 1", as a tribute to the greatest ambient guitar Youtuber, ‪@chordsoforion‬ But I opted for a less facetious and more utilitarian name. That way I can shamelessly shove the highlighted gear list in the title.

I got a TC Electronic Flashback Triple Delay recently and holy crap, instant inspiration. A bit of fiddling with the Toneprint editor and I had my 3 stacked delays for the main simulated Frippertronics tape loop. Then I said, well hell, I already have a TC Flashback II, might as well Toneprint a Frippertronics tape loop delay in that box too. So the OB-6 gets the Flashback II, and the guitar gets the Flashback Triple. I made a 4 step polyphonic sequence for the OB-6. The little Roland DP-2 switch cycles through each step. The Tonex hosts a capture of my own Peavey 6505 amp, clean channel with pre-gain at 6. There's a little (ok a lot) of Strymon Cloudburst at the end for the final chef's kiss.

Too much gear and too many parallel signal chains to list, but deep breath here we go...

Guitar: Ibanez M80M (8-string), IK Multimedia Tonex, Guptech Honker overdrive, Morley Little Alligator volume pedal, TRex Replicator tape delay eurorack module (somehow works fine at instrument level), Two Notes Torpedo Captor M+ with Ownhammer 412 Rect Balanced Cab IR, TC Electronic Flashback Triple Delay (delay 2 is the tape loop), Strymon Cloudburst Reverb

Synth: Oberheim OB-6, TC Electronic Flashback 2 (tape loop), Audiothingies Doctor A (stereo delay and reverb)

Guitar Synth: Boss SY-300, Strymon Cloudburst Reverb (plugin)

MIDI Mod for iOS adds random delay time shifts to the TRex Replicator via a Kenton MIDI to CV box.

Recorded live, first take! (can't f'ing believe it)

No post processing other than a little bit of the Strymon Cloudburst plugin for the final "glue"

Hypergol: https://hypergol.bandcamp.com

MIDI Mod for iOS: https://apps.apple.com/us/app/midi-mo..."
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