MATRIXSYNTH

Sunday, January 04, 2026

Korg Polysix with Kiwi Technics Kiwisix

Note: links to listings are affiliate links for which the site may be compensated.
video upload by ohm_studi_ohm

"Demo of some patches I programmed on the Korg Polysix. This unit has the KiwiSix CPU board installed that adds many features (like MIDI, sequencing, 512 presets etc) without changing the sound of the synth.
The polysix is a true 6 voice VCO VCF VCA analog synth and it sounds great. By design however the enveloppe is slow and the sound a bit dark due to an added post FX VCF (LM13600). A simple mod allows to bypass this and let the synth shines. With this mod you get a very snappy and funky synth whose SSM2044 filters gets very well along the built-in chorus/phaser/ensemble FX. This unit has this mod done.
From funky keys, to lush string pads, the P6 has a very large scope despite its very limited features.
Only bad point of the P6 is that it has a fairly high noise level. Some improvement can be made like in this unit by adding more ground wires, applying copper foil on the bottom case and adding ferite around wires."



via this Reverb listing, also on eBay

"INSTRUMENT IS FOR SALE AT REDUCED PRICE ON EBAY DURING JANUARY ONLY"

Pics of the inside below.

"Serviced and fully working classic 6 voices analog poly synth.- brand new KiwiTechnics Kiwisix CPU board that adds lot of features (MIDI IN & OUT, CC, sequencer, 512 presets etc)

- all electrolytic capacitors were replaced (the P6 has many of infamous Panasonic CE capacitors that leak after decades of use)

- post FX VCF mod: this simple mod gives the P6 faster enveloppe and fuller sound. A must do on all P6, check demo.- improvement of the ground design by adding more and thicker ground wires, copper tape on the bottom case and ferrite around the data wires

- full calibration

Unit is fully working and sounds great. As expected with these Polysix there still is some light background digital noise due to design, but nothing major, check demo to hear how it sounds.

Cosmetic is good with some scuffs here and there, especially on the case as it often is the case on P6. One switch cap ("hold") is not original."

ambient sketches with buchla synthetizer


video upload by Tom Leclerc

Erica Synths Steampipe + Synthstrom Deluge // DAY 3 #jamuary2026


video upload by Dexba

"New day, new instruments, different languages, different gestures, and it's to surprise of no one that I am not equally proficient in each one of them, especially when they are same-same but different (like with the OPXY vs Deluge).
I've listened to this recording for a good part of the day and I was getting nauseated, but I asked my girlfried to check it out, she genuinely liked it a lot, so that's why I am uploading it.
Day by day, I feel the need for a mixer (and maybe a more powerful computer), but the focus is practice, and give a spot to all the beautiful toys I keep in the studio.
I hope you'll enjoy it!"

Syncussion SY-1 , Buchla Easel Command , TTMC Sequencer Card , Tokyo Delay Card


video upload by Tokyo Tape Music Center

https://tokyo-tape-music-center.com

phaedra2026 by graal7


video upload by graal7

variation of phaedra (tangerine dream)
moog one
model d geddy lee
matrix and drumbrute
sq 1
korg ms 20
xf8

* Novation Summit in there as well.

Saturday, January 03, 2026

Synth noodling


video upload by Midnight Fury

"The creation process. random synth jamming.
Gear used
Tr8s Sub37 Hydrasynth Novation Summit OB6 Take5"

Wavetable Synths A-Go-Go: 1010Music Fireball, Pigments 7, and Ultra.Audio Ultra!


video upload by Keith Crosley

"It's a trifecta of new (and new-to-me) wavetable synthesizers! Your old pal Keith got a 1010music nanobox Fireball synth for Christmas, so of course I made a new wavetable collection for it. Let's take a look and listen! Also, we'll talk about Arturia Pigments 7, and look at the crazy wavetable features of a new super-synth, ultra.audio's... Ultra! Also, I talk about "Microwaved" wavetables, sample fukkery, show off one of my Lego minifigures, and introduce you to my new favorite band. It's like show-and-tell for grown-ups who refuse to grow up! So grab your micro SD card, stick it in the slot, and join for a WAVETABLE-SYNTH-A-GO-GO episode of your favorite talky synthesizer content show!"

"Get my new KRC Fireball Collection -- 2000+ wavetables for 1010music Fireball, Bento, and other wavetable synths that support Serum-style .wav wavetables -- just $10!: https://www.wavetables.lol"

CHAPTERS:
00:00:00 Intro, wavetables.lol, KRC Mathwaves
00:00:40 1010music nanobox Fireball hardware wavetable mini-synth
00:23:52 Arturia Pigments 7 software wavetable synth
00:35:17 ultra.audio Ultra VST3/standalone wavetable super-synth

Caved and bought a MAKE NOISE Multiwave


video upload by Matt Lowery

"After hemming and hawing for about a month, I gave in and bought a Make Noise Multiwave in order to finish out my New Universal Synthesizer system. This video is not a guided exploration of the module-- rather, it's documentation of a patch exploring audio rate envelopes from Polimaths, basic wavetables from Multiwave, and Rene 2 as a chord sequencer. No external fx were used.

Like what you hear? Come pick up the Bokeh Bundle to support his channel: https://otakusound.gumroad.com/l/Boke..."

Yamaha DX7 Repair & Overlay Replacement


video upload by Synthesizer Keith

"In this video I replace the overlay panel on a Yamaha DX7, and do routine repairs and maintenance.

00:00 Play In
00:09 Introduction
02:32 Disassembly
03:05 Grey Matter E Upgrade Board Removal
03:39 Battery Replacement
04:54 Grey Matter E Upgrade Board Re-installation
05:32 Tact Switch Replacement
07:42 Overlay Panel Replacement
10:39 Switch PCB Shims
11:26 Keyboard Cleaning
12:20 Mod and Pitch Wheel Cleaning
12:48 Re-assembly
13:19 Conclusion
13:48 Play Out"

MAESTRO 2.0: Heart Reborn. The new mods for the Soviet Formanta Maestro synthesizer. Part 1


video upload by Kee Reel

"The new features for the Maestro Synthesizer. Part 1.
0:00 Intro
1:20 Upgrated Apreggiator
2:42 Poly Duo Mono Unison
3:46 Hot keys
4:04 Waveform selector

• Poly / Duo / Mono + Unison
• Advanced Arpeggiator: 4–8–12–16 steps, Up / Down / Ping-Pong / Random, note priority, external sync
• Gate Modes: Normal / Invert, first-note or every-note trigger
• Portamento (Glide)
• LFSR Noise with fixed or random modulation
• Waveform Selector: Saw / Square / Pulse + combinations (all through filter)
• MIDI: In / Out / Sync / Learn"
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