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via this eBay listing
Saturday, May 17, 2025
Analogue Solutions Impulse Command Semi-Modular Analog Synthesizer
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via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Sismo Twin-T Analog Bass Synthesizer
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via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Elektron Analog Rytm MkII w/ Original Box
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via this Reverb listing
Additional SYNTH CITY Listings
"Elektron Analog RYTM MKII, includes factory packaging like new!"
via this Reverb listing
Additional SYNTH CITY Listings
"Elektron Analog RYTM MKII, includes factory packaging like new!"
Roland JX-3P SN 357679 w/ KIWI 3-P Mod & Retroaktiv PG-2K Programmer
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
"Roland JX-3P maxed out with the KIWI 3-P mod and the very intuitive Retroaktiv PG-2K controller programmer, taking this JX3P to new territory! This synth has been fully serviced and is ready for studio or stage.
Missing the knob cap for the brilliance control and has a mismatched knob on the master volume control. Includes programmer connecting cable."
via this Reverb listing
Additional SYNTH CITY Listings
"Roland JX-3P maxed out with the KIWI 3-P mod and the very intuitive Retroaktiv PG-2K controller programmer, taking this JX3P to new territory! This synth has been fully serviced and is ready for studio or stage.
Missing the knob cap for the brilliance control and has a mismatched knob on the master volume control. Includes programmer connecting cable."
Roland Juno-106 61-Key Programmable Polyphonic Synthesizer w/ Hardcase (Serviced) SN 394154
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via this Reverb listing
"1983 Roland Juno 106 in fully working condition with new voice chips installed. Includes hard case as pictured."
Additional SYNTH CITY Listings
via this Reverb listing
"1983 Roland Juno 106 in fully working condition with new voice chips installed. Includes hard case as pictured."
Additional SYNTH CITY Listings
Korg Delta Strings Synthesizer SN 286497 w/ Original Box
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via this Reverb listing
via this Reverb listing
The Order The Order
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via this Reverb listing
via this Reverb listing
Akai S612 MIDI Digital Sampler + MD280 disk unit + 6 disks + rare 1.3 firmware
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
"The first sampler from AKAI - 1985
4khz to 22khz frequency sampling (1 sec. to 8 sec.)
6 voices polyphony
Analog lowpass filter
In good cosmetic condition, with many light traces of rust on the cover, but all other parts are free form rust or humidity traces. Inside is perfectly clean.
Everything works perfect.
This unit have the rare custom Firmware 1.3 from Florian Anwander allowing multi slices, velocity to filter and amp + more.
Some of these features need to be loaded from disk at start, but this disk is missing.
However, the velocity functions are available
The sampler have also been modified with 6 individual outputs. It allows to output each slice to individual output, but also to pan each of the 6 voices individually.
The MD280 disk unit have a new belt and head cleaned
It comes with 6 rare QDD 2.8 inch sample disks, including original AKAI library disks.
Works on 220-240 AC"
via this Reverb listing

4khz to 22khz frequency sampling (1 sec. to 8 sec.)
6 voices polyphony
Analog lowpass filter
In good cosmetic condition, with many light traces of rust on the cover, but all other parts are free form rust or humidity traces. Inside is perfectly clean.
Everything works perfect.
This unit have the rare custom Firmware 1.3 from Florian Anwander allowing multi slices, velocity to filter and amp + more.
Some of these features need to be loaded from disk at start, but this disk is missing.
However, the velocity functions are available
The sampler have also been modified with 6 individual outputs. It allows to output each slice to individual output, but also to pan each of the 6 voices individually.
The MD280 disk unit have a new belt and head cleaned
It comes with 6 rare QDD 2.8 inch sample disks, including original AKAI library disks.
Works on 220-240 AC"
DIY eurorack modular synth | MOD2 FM Drum : RP2350 based drum module
video upload by HAGIWO
"This module is an open source general-purpose Drum module based on Seeed XIAO RP2350.
Thanks to AI-friendly hardware design, it's easy to create software variations using generative AI.
With general-purpose components and a simple circuit, this module is affordable and DIY-friendly.
FM Drum:
Two‑operator FM percussion voice for Eurorack.
working documents
https://note.com/solder_state/n/nce8f...
https://note.com/solder_state/n/n5ff2...
PCB gerber data & PCB assy production data Download
https://www.patreon.com/posts/mod2-rp...
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH