Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"Powerful analog 2 osc monosynth from Switzerland! Based on TB-303 but more on a side of Sh-101/ProOne with expanded options such as ring modulator, 12/24 dB filter, lfo matrix, oscillator sync, ADSR...Very useful racked format with MIDI to CV/Gate outputs to control other gear. Very good condition."
Thursday, October 09, 2025
Akai EWV2000 EWI / EVI Sound Module
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Korg DSS-1 Sampling Keyboard Synthesizer SN 008325
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
via this listing
Additional Perfect Circuit listings
Spectral Audio ProTone analog midi synthesizer SN 812448
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
via this Reverb listing
Additional SYNTH CITY Listings
ARP Rhodes Chroma Enabler Programmer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"This is the newest version of the rare programmer developed for the Rhodes Chroma. If you are lucky enough to have a [CC+ upgraded] Chroma then this thing will unlock all of the editing capabilities. Comes with the power supply."
via this Reverb listing
"This is the newest version of the rare programmer developed for the Rhodes Chroma. If you are lucky enough to have a [CC+ upgraded] Chroma then this thing will unlock all of the editing capabilities. Comes with the power supply."
1970s Eminent (ARP) Solina String Ensemble
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
via this Reverb listing
Sakata DPM-48 Digital Drum Machine SN 522847
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
You can find a demo of one previously posted here.
via this Reverb listing
You can find a demo of one previously posted here.
Nord Modular G2X w/ Extras
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing

"Likely only around 500 units of the 61-key Nord Modular G2X were ever produced, exact production number unknown. Each factory-equipped with the polyphony expansion — making it far rarer and more capable than the standard G2.
Listed intentionally at a high price to preserve genuine interest. ;)
Currently enjoying life in the studio among equally distinguished company – but if a serious offer comes in, I’ll listen.
Rare find Nord Modular G2X in near mint condition, complete original set – includes factory soft case, factory gooseneck mic, original user manual and installation CD. Fully serviced, recapped, running the latest OS.
Main features:
– Morph system: control up to 25 parameters with a single controller.
– Modular engine: hundreds of modules; VA oscillators, PM/shape oscillators, String Osc (physical modeling), complete sequencer family.
– Keyboard/control: 61 keys with velocity and aftertouch, Clavia pitch stick + mod wheel, plus two additional programmable LED-ring mod wheels unique to the G2X.
– I/O: built-in XLR gooseneck mic with preamp (for vocoder and audio modulation), 4 audio inputs / 4 audio outputs.
– Internal routing: internal audio bus between Slots, dedicated arpeggiator and vibrato LFO with no wasted modules.
– Multitimbral: 4 independent Slots, Performance mode for layers and splits, 8 Variations per patch switchable in real time.
– Rarity: the G2X includes the factory Voice Expansion, providing greater polyphony than the standard G2.
– Condition: full set, serviced and recapped, latest OS, all encoders and buttons work perfectly.
Not for sale at any price – serious buyers only."
via this Reverb listing


Listed intentionally at a high price to preserve genuine interest. ;)
Currently enjoying life in the studio among equally distinguished company – but if a serious offer comes in, I’ll listen.
Rare find Nord Modular G2X in near mint condition, complete original set – includes factory soft case, factory gooseneck mic, original user manual and installation CD. Fully serviced, recapped, running the latest OS.
Main features:
– Morph system: control up to 25 parameters with a single controller.
– Modular engine: hundreds of modules; VA oscillators, PM/shape oscillators, String Osc (physical modeling), complete sequencer family.
– Keyboard/control: 61 keys with velocity and aftertouch, Clavia pitch stick + mod wheel, plus two additional programmable LED-ring mod wheels unique to the G2X.
– I/O: built-in XLR gooseneck mic with preamp (for vocoder and audio modulation), 4 audio inputs / 4 audio outputs.
– Internal routing: internal audio bus between Slots, dedicated arpeggiator and vibrato LFO with no wasted modules.
– Multitimbral: 4 independent Slots, Performance mode for layers and splits, 8 Variations per patch switchable in real time.
– Rarity: the G2X includes the factory Voice Expansion, providing greater polyphony than the standard G2.
– Condition: full set, serviced and recapped, latest OS, all encoders and buttons work perfectly.
Not for sale at any price – serious buyers only."
Roland Jupiter-4: The Analog Polyphonic Pioneer 🎹
video upload by RetroSound
"(c)2007-25 by RetroSound
supported by UVI: http://bit.ly/retrosound-uvi
Roland Jupiter-4 - The Analog Polyphonic Pioneer
A deep dive into my favorite Jupiter the Roland Jupiter-4, exploring its unique features and the reasons it is often overshadowed despite its significant contributions. The enduring legacy of the Roland Jupiter-4, a foundational analog polyphonic synthesizer, is explored in this video. Its pioneering sound and significant impact on electronic music are highlighted.
I used in the demo track:
Roland Jupiter-4 (1978) most sounds
Roland TR-808 (1982) drums
PPG wave 2.2 (1982) choir sounds"
A stereo Korg Poly 61
video upload by Craig Barnes
"As my poly 61 is now controlled by a dedicated editor, the editor hardware can be used to control a Behringer June 60 chorus, a simple mod of the June 60 to use 5v relays instead of push buttons and it can be controlled by a micro."
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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