MATRIXSYNTH

Saturday, February 21, 2026

Marcus Dunn aka lonesoulsurfer DIY Modules


video uploads by Marcus Dunn

Playlist:

1. 7 Channel Mixer For My Modular Synth.
2. Medusa - Sound Effects for Modular Synths
3. Buffered Multi for Modular Synths. Powered by Arduino
4. Digital Delay Module - Powered by Arduino
5. Bleep - Modular Drum Synth - powered by Arduino
6. Solar - A Modular Synth, Powered by Arduino
7. Groove Box Modular Synth - Arduino Nano
8. Freaq FM Synth. My Take on the Awesome MeeBleeps Synth
9. Mutant Generative Synth - Powered by Arduino

Additional details on each:

Cream White Model Arturia PolyBrute 12 Polyphonic Keyboard Synthesizer

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


via this listing

Additional Perfect Circuit listings

Grp A1 Desktop Semi-Modular Analog Synthesizer SN 031 in Wood Desktop Stand

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


via this listing

Additional Perfect Circuit listings

Elektron SID Station Digital Desktop Synthesizer

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


via this listing

Additional Perfect Circuit listings

Dave Smith Instruments Tempest Analog Synthesizer + Drum Machine SN 03564

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


via this listing

Additional Perfect Circuit listings

Dave Smith Instruments Mono Evolver Keyboard PE Potentiometer Edition SN 00254

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


via this eBay listing

"Dave Smith Instruments Mono Evolver in fantastic condition. This has the upgraded PE or Potentiometer Edition boards, but the original endless encoder boards are included if you wanted to revert it!

This is an amazing and very unique sounding synth which I love, but have to let go. It has never been gigged and has only had light use in a non-smoking home studio.

There are no scratches on the wood end-cheeks or the front panel or keys, there is a small mark on the rear visible in the photos. It is generally in very good condition, near mint.

It comes with the power cable and plug adapters for different regions. It will be packaged extremely carefully, so it arrives safely, with insurance."

EMU PROTEUS MPS+ Master Performance System Plus ORCHESTRAL

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


via this eBay listing

Oberheim Xpander XP-1 6-voice Analog Synthesizer SN Y61801 w/ Original Manual

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


via this eBay listing

"Experience one of the most legendary analog synthesizers ever made — the Oberheim Xpander XP-1. Built in Los Angeles, California, this 1980s powerhouse defined modular-style flexibility in a desktop form. With six independent voices, twelve VCOs, and one of the deepest modulation matrices of its era, the Xpander remains a timeless studio centerpiece for collectors, sound designers, and film composers.

• Tested & fully functional — all six voices respond properly.

• Cosmetic wear includes two surface scratches on the top panel (see photos).

• Metal hard case included — foam interior has deteriorated due to age but still protects the unit securely.

• Clean, smoke-free environment.

• Overall: Very good vintage condition, with expected signs of use for a classic Oberheim."

Pamela's PRO Workout - 1x PPQN


video upload by ALM TV

"Clocking Pamela’s PRO Workout at x1 PPQN with an ASQ-1 sequence to create a completely random Castle setting each time a note is triggered. 🪄✨ . 🔵 The ASQ-1 is started, sequencing a dual oscillator Akemie’s Castle melody. Pam’s PPQN is set to x1, with all outputs set to produce x1 random waves. The gate out of the ASQ-1’s sequence is duplicated to the Clock input of Pam. At each note in the sequence, Pam’s 8 random signals are advanced due to the x1 PPQN setting. The outputs are patched to modulate most of the Castle’s parameters, resulting in a totally random sound for each note in the sequence. 🏯"

E FUN!WLK FILTERBANK // CLEAN vs. DISTORSION // TORSO S-4 // EMPRESS Zoia // No Talking


video upload by LESINDES

"The WLK FILTERBANK is used on SPEECH, a NARRATION LOOP explaining the WLK and the SND filterbanks in ENGLISH and GERMAN. Extreme use of the frequency bands and also the distosion/saturation settings demonstrate the ability of the units und explore its/their boundaries.
SND FB-14 speech demo will be uploaded soon.

HAVE FUN!

The humming noise in the background is a crane that has been working for hours on the street to repair a water pipe of a neighboring building. I tried to remove it but I wasn’t entirely successful. To cut a long story short: Since the units dramatically compress the signal they push it but they are not generating it!"
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