MATRIXSYNTH

Thursday, October 30, 2025

Formant: pro custom-built by JVR

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


via this Vemia listing

Click the auction link on top when you get there for additional listings.

"This is a custom built synth made for me by Jos Van Ras who is an ex-Phillips engineer in the Netherlands who builds Elektor modules and cases.

The synth consists of the following modules: 3 x VCO - very powerful VCOs with a Moog vibe and unlike most Elektors, these have Sync inputs and the sync sound is really powerful. 3 x VCF - 3 different VCFs, two based on the original Elektor designs (a 12dB multiode filter, and another filter switchable between 24/18/12/6 dB/octave with LP and HP outputs) and a third based on the Steiner Parker filter which is really nice sounding. 1 x triple LFO - 3 simple LFOs without voltage control but with a variety of waveshapes. 1 x NOISE / RANDOM VOLTAGE 4 x ADSR 2 x VCA 2 x MIXER 1 x quadruple MULTIPLES 1 x RING MOD 1 x S&H / Inverter 1 x COM which is an output module with a 3 band EQ which is surprisingly useful 1 x MIDI to CV converter

This synth offers tremendous bang for the buck, I think it gives quite a Moog feeling in sound. It contains everything you need for a great variety of sounds but you can always patch it with Eurorack or other modular gear. I will post some sound examples as there aren't many good demos online.

The negatives are that the cabinet is just functional MDF, no fancy timber, and the MIDI interface is very basic. I usually use a Kenton for more complex MIDI control."

Teisco 110F S-110F w/ Original Box

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


via this Reverb listing

"Teisco Synthesizer 110F in amazing condition for its age. Rare synth and even more rare in this condition. This was well kept into its original box. Fully serviced with the best care and components. Comes also with its original dust cover.

This synth runs on 100V, a step down transformer (not included) is recommended for liability to use it in your country."

Dave Smith Instruments Prophet 12 Hybrid Keyboard Synthesizer SN 00618

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


via this listing

Additional Perfect Circuit listings

Buchla Easel Command Semi-Modular Analog Synthesizer

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


via this listing

Additional Perfect Circuit listings

Boss DR-220A Dr. Rhythm Drum Machine SN 712700

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


via this listing

Additional Perfect Circuit listings

2025 STEDA Electronics SR-909 - Black w/ EXT Mod (Pro Assembled)

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


via this Reverb listing

Additional SYNTH CITY Listings

"Fully assembled SR-909 drum machine from Steda Electronics. Works fantastic and sounds amazing as expected with EXT mod Variable Hi-Hat tune control:

Enable Hi-Hat tune On/Off switch.
Variable Clap decay control.
Enable x2 Bass Drum decay On/Off switch.
Variable Bass Drum overdrive control.
Includes AC power cable and a sweet ghost sticker on the bottom panel."

Roland Rhythm700 TR-700

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


via this Reverb listing

Pics of the inside below.

"Now this is a beautiful and very rare gem that you will almost never see for sale; This true analog and unique member of the Roland TR family is very cool: it has lots of adjustable trims inside so shape your drum sounds, like inside the CR-78! This also makes this the perfect vintage Roland moddable analog drum machine. Also: individual outs is easy on this one.

This one is of course after not mint anymore after 50 years, but honestly; despite a few wood flaws it actualy looks very nice still, certainly comparing to other units I have seen.

On the technical side: it works for the most part. On the main output everything seems normal, besides the volume balance seems not entirely accurate, but I have nothing useful to compare. The internal speaker does'nt seem to pass the bass drum. The speaker has been disconnected before for shipping [because not all countries accept speakers being shipped the quick way], maybe something was not re-attached properly. Therefor is sold as 'kind of working but needs technical service'. So sold AS-IS. No returns or [partly] refunds if anything other then described is not working properly. Maybe I am over-accurate here, just want to tell an honest story where others just hope for the best advertising crap as 'in good condition'. Hope you appreciate it!

Volume is rewireable to 120v, its now set to 100V. I have never seen this unit on European voltage to be honest. For all higher voltages you need a simple step down transformer. Or give it a new replacemnet transformer when you are servicing this beast."

Electronics D.S.M. 8+ drum synthesizer modules

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


via this eBay listing

"Mint condition, The MPC-DSM Electronics D.S.M. 8+ drum synthesizer modules are a versatile and high-quality option for creating intricate and dynamic drum sounds. As a modular synthesizer, these modules offer the opportunity to customize and experiment with different sound design techniques. With the trusted brand of MPC-DSM, users can expect top-notch performance and reliability in their electronic music productions. Perfect for both studio and live performances, these drum synthesizer modules provide endless creative possibilities for music creators."

UDO Patchwork: Michael Jackson - Thriller on the Super 8


video upload by UDO Audio

"Super 8 meets Thriller! Join Hazel Mills as she breaks down how to recreate the iconic MJ hit, produced by the legendary Quincy Jones, in this Halloween-special Patchwork episode.

Chapters:
0:00 Intro
0:41 Pad
3:24 Bass
5:10 Outro"

WARP - Part 4. With CV (SOMA labs demo, no talk)


video upload by SOMA Laboratory

00:00 HPF LPF Terra
00:52 FLANGER Terra
01:37 HPF LPF Bass
02:18 WAVEFOLDER Lyra-8
03:23 MB DRIVE Pulsar-23
04:25 FLANGER Pulsar-23
05:22 WAVEFOLDER Pulsar-23
06:48 LUSH Pulsar-23
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