Saturday, January 10, 2026
Frostwave Resonator - Korg MS20 filter clone - Classic Australian guitar pedal
video upload by Mikus Pilatus
"One of the classic Australian pedals (along with Chunk)
Just fixed this up (it’s my second resonator)
They ooze character"
The Frostwave Resonator is a clone of the classic Korg MS20 filter.
Yamaha DX7 Digital FM Keyboard Synthesizer SN 94268
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
Yamaha TX7 FM 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
Arturia Microfreak SN 5701400503220220
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional CONTROL Listings
via this Reverb listing
Additional CONTROL Listings
Oberheim Xpander Desktop 6-Voice Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"The legend. The Xpander is absolutely one of the Top 10 synthesizers of all time. This machine is the sound of so many amazing records. Depeche Mode. Erasure. Nine Inch Nails. The Chemical Brothers. Orbital. The list goes on. It is also one of the most flexible synthesizers with patch memory ever made. It is truly modular with vast routing possibilities. And then there is the sound. Classic Oberheim attitude.
This machine is in very good condition and passes all tuning tests. Sounds absolutely amazing. Hard flight case included."
via this Reverb listing
"The legend. The Xpander is absolutely one of the Top 10 synthesizers of all time. This machine is the sound of so many amazing records. Depeche Mode. Erasure. Nine Inch Nails. The Chemical Brothers. Orbital. The list goes on. It is also one of the most flexible synthesizers with patch memory ever made. It is truly modular with vast routing possibilities. And then there is the sound. Classic Oberheim attitude.
This machine is in very good condition and passes all tuning tests. Sounds absolutely amazing. Hard flight case included."
Roland System 100m D-Set (112,121,130,140,150,191J)
Note: links to listings are affiliate links for which the site may be compensated.
video upload by Ian Nieman
via this Reverb listing
video upload by Ian Nieman
via this Reverb listing
White Skinned Roland Boutique Series TR-08 Analog Modeling Drum Machine
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"Unit is actually the black, normal version, with a white skin on top that can easily be taken off."
via this Reverb listing
"Unit is actually the black, normal version, with a white skin on top that can easily be taken off."
Akai AKAI ME30P Programmable MIDI Patchbay & S2000 MIDI Stereo Digital Sampler
Note: links to listings are affiliate links for which the site may be compensated.
via these listings
"Akai S200 Stereo Sampler [SN C9725-01403] with AKAI system boot disk and OG manual."
"Programmable midi patch bay/router. Works 100%"
via these listings
"Akai S200 Stereo Sampler [SN C9725-01403] with AKAI system boot disk and OG manual."
"Programmable midi patch bay/router. Works 100%"
Vintage PAiA 4700 Series Modular Analog Synthesizer with Keyboard
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
"Vintage PAiA 4700 Series Modular Analog Synthesizer with Keyboard – Needs Repair
Offered here is a PAiA 4700 Series Modular Synthesizer, produced between the early 1970s and early 1980s. This system is being sold as-is and will require service to be fully operational.
Functional Status
VCO 1: Powered and producing signal. Can be patched through the filter and mixer and triggered via the keyboard.
VCO 2 & VCO 3: Not producing output. Both modules are not connected to power or ground.
Sequencer (4780): Does not power on or respond. The power and ground wires are present on the bus but not connected to the sequencer module.
Filter (4730): Produces sound when triggered through the mixer.
Keyboard / Pitch Tracking: Synth triggers properly, but pitch does not track consistently across notes within the same octave and will require calibration or service.
Internal Condition
Power and ground wiring for the sequencer, VCO 2, and VCO 3 are disconnected internally.
Loose wire ends have been insulated.
Reason for the disconnections is unknown.
Included Modules
4720 VCO (x3 total)
4730 VCF
4740 Envelope Generator (x2)
4710 Balanced Modulator (x2)
4711 4/2 Mixer
4712 Reverb
4770 Watt Block (x3)
Control Oscillator
4761 Wing
4780 Sequencer
Notes
No patch cables included
Vintage condition with cosmetic wear consistent with age
Not fully functional and sold as-is for restoration, repair, or knowledgeable users
The PAiA 4700 is a historically interesting DIY-era modular synthesizer with a distinctive analog character. This example will appeal most to technicians, restorers, or modular enthusiasts comfortable with vintage electronics."
via this eBay listing
"Vintage PAiA 4700 Series Modular Analog Synthesizer with Keyboard – Needs RepairOffered here is a PAiA 4700 Series Modular Synthesizer, produced between the early 1970s and early 1980s. This system is being sold as-is and will require service to be fully operational.
Functional Status
VCO 1: Powered and producing signal. Can be patched through the filter and mixer and triggered via the keyboard.
VCO 2 & VCO 3: Not producing output. Both modules are not connected to power or ground.
Sequencer (4780): Does not power on or respond. The power and ground wires are present on the bus but not connected to the sequencer module.
Filter (4730): Produces sound when triggered through the mixer.
Keyboard / Pitch Tracking: Synth triggers properly, but pitch does not track consistently across notes within the same octave and will require calibration or service.
Internal Condition
Power and ground wiring for the sequencer, VCO 2, and VCO 3 are disconnected internally.
Loose wire ends have been insulated.
Reason for the disconnections is unknown.
Included Modules
4720 VCO (x3 total)
4730 VCF
4740 Envelope Generator (x2)
4710 Balanced Modulator (x2)
4711 4/2 Mixer
4712 Reverb
4770 Watt Block (x3)
Control Oscillator
4761 Wing
4780 Sequencer
Notes
No patch cables included
Vintage condition with cosmetic wear consistent with age
Not fully functional and sold as-is for restoration, repair, or knowledgeable users
The PAiA 4700 is a historically interesting DIY-era modular synthesizer with a distinctive analog character. This example will appeal most to technicians, restorers, or modular enthusiasts comfortable with vintage electronics."
DREADBOX NYX ORIGINAL SN 01171
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
"The Dreadbox NYX Original V1 desktop analog synthesizer is a high-quality musical instrument that offers a unique and versatile sound experience. Made in Greece, this synthesizer utilizes analog technology to create rich and dynamic sounds for musicians and producers. With its compact design and reliable power adapter, it is perfect for creating music on the go or in a studio setting. The Dreadbox NYX Original V1 is a must-have for anyone looking to explore the world of analog synthesis."
via this eBay listing
"The Dreadbox NYX Original V1 desktop analog synthesizer is a high-quality musical instrument that offers a unique and versatile sound experience. Made in Greece, this synthesizer utilizes analog technology to create rich and dynamic sounds for musicians and producers. With its compact design and reliable power adapter, it is perfect for creating music on the go or in a studio setting. The Dreadbox NYX Original V1 is a must-have for anyone looking to explore the world of analog synthesis."
PREVIOUS PAGE
NEXT PAGE
HOME
© 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
© 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
