video upload by Roland Perez
via this eBay listing
Sunday, January 25, 2026
Red Roland SH01a Quick Demo via the onboard speaker. SN Z2I0300
Note: links to listings are affiliate links for which the site may be compensated.
video upload by Roland Perez
via this eBay listing
video upload by Roland Perez
via this eBay listing
Friday, January 16, 2026
1980s Linn Electronics LinnDrum LM-2 (Fully Serviced) SN 3218
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
"1980s Linn Electronics LM2 Drum Machine, fully serviced/restored in-house. Ready for studio action and sounds incredible. Serial No. 3218
Service notes:
-Disassembled and cleaned/lubricated Level and Pan faders
-Cleaned control and master volume pots
-Repaired MUX drum D/A and audio circuit
-Repaired read function for bass drum ROM
-Replaced internal memory batteries with modern type
-Replaced electrolytic capacitors on all pcbs
-Disassembled and cleaned switches on panel PCB
-Cleaned chassis and panel
-Installed complete set of freshly burned sound ROMS (31 total)
-Calibrated mux clock and set internal filter adjustments
-Cleaned IC pins and socket of CPU
-Cleaned pins and socket of 16pin DIP cable between CPU and voicing pcbs"
via this Reverb listing
Additional SYNTH CITY Listings
"1980s Linn Electronics LM2 Drum Machine, fully serviced/restored in-house. Ready for studio action and sounds incredible. Serial No. 3218
Service notes:
-Disassembled and cleaned/lubricated Level and Pan faders
-Cleaned control and master volume pots
-Repaired MUX drum D/A and audio circuit
-Repaired read function for bass drum ROM
-Replaced internal memory batteries with modern type
-Replaced electrolytic capacitors on all pcbs
-Disassembled and cleaned switches on panel PCB
-Cleaned chassis and panel
-Installed complete set of freshly burned sound ROMS (31 total)
-Calibrated mux clock and set internal filter adjustments
-Cleaned IC pins and socket of CPU
-Cleaned pins and socket of 16pin DIP cable between CPU and voicing pcbs"
Roland JP-08 Boutique Series Digital Synthesizer Module
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional Three Wave Music Listings
via this Reverb listing
Additional Three Wave Music Listings
Wednesday, January 14, 2026
Tangible Waves Mini Drone System demo
Note: links to listings are affiliate links for which the site may be compensated.
video upload by NOISEBUG
"This week we are restocking the full line of Tangible Waves, the small but mighty modular format equally powerful to its much larger counterparts.
Some incredibly unique modules exist within the Tangible Waves universe, such as the the Drone38- a bank of 18 oscillators designed for swarms, drones and lush soundscapes.
We designed a mini system around the DRONE38, which is now available on our Reverb shop - https://reverb.com/item/94056769-tang...
Look out for more mini-modular systems and video spotlights in the very near future. For more info on the most affordable way to experience modular, contact Noisebug.
#synth #modularsynth #tangiblewaves"
via this listing
"A small but powerful drone system of Tangible Waves modules, including:
POWER - the most simple base of an AE modular system. Contains the voltage regulation (5V) for the power supply of the modules, two stereo In/out-sockets (3.5mm minijack) for audio out and general in/out like CV, gate, a stereo headphone amplifier
DRONE38 - a sound generator with 18 oscillators in total, organized in six groups of three oscillators each. 12 of them can be switched between sawtooth and triangle waves, 6 are fixed sawtooth oscillators. The oscillators are not meant to be controlled by CVs, but only set static with a knob. By mixing them, very dense drones and clusters can be created.
DRONX - a special mixer designed especially for the DRONE38 module; it has 6 input channels with sound processing capabilities: a tone control with bass and treble control, a distortion, and finally a dual delay with different algorithms.
2VCA - contains two separate voltage controlled amplifiers; the classic module to shape the volume of a sound that is fed to IN by a control voltage, e.g. from an ENV to the CV input. DC/CV or audio operation modes, an additional knob per VCA for attenuation.
SVFILTER - offers control of cutoff frequency, resonance and CV attenuation; two signal inputs for different signal levels control the "drive" of the module. This filter has a significant self resonance and also a very quick response to cutofffrequency changes. LP, BP, and HP output.
LFO (2x) - generates modulation voltages mostly below the audio range. PWM modulation for the Pulse out, two frequency ranges (SLOW / FAST), three separate output signals: Square (even duty cycle), TRIANGLE/Sawtooth (switchable), Pulse
NOISE - two types of noise with A output generating analog noise (a fluctuating voltage between about 1-4V) and D output generating digital noise, (a random changing 0V / 5V). The RATE knob controls the color of the noise, which goes from almost white noise to a rather harsh and digital sound.
2S&H - "freezes" the input voltage with a trigger input. Typically used for random CV patterns if a noise signal is fed to the input and triggered e.g. by an LFO.
2ATT/CV - simple level attenuation for any kind of signal. Voltage mode switch gives manually controllable CV on the outputs, the INV outputs provide the inverted value of the input.
System is pre-built into a 1x16 Bamboo case and includes switchable 9V PSU, 2 packs of patchwire, and 1 pack of colored knobs."
video upload by NOISEBUG
"This week we are restocking the full line of Tangible Waves, the small but mighty modular format equally powerful to its much larger counterparts.
Some incredibly unique modules exist within the Tangible Waves universe, such as the the Drone38- a bank of 18 oscillators designed for swarms, drones and lush soundscapes.
We designed a mini system around the DRONE38, which is now available on our Reverb shop - https://reverb.com/item/94056769-tang...
Look out for more mini-modular systems and video spotlights in the very near future. For more info on the most affordable way to experience modular, contact Noisebug.
#synth #modularsynth #tangiblewaves"
via this listing
"A small but powerful drone system of Tangible Waves modules, including:POWER - the most simple base of an AE modular system. Contains the voltage regulation (5V) for the power supply of the modules, two stereo In/out-sockets (3.5mm minijack) for audio out and general in/out like CV, gate, a stereo headphone amplifier
DRONE38 - a sound generator with 18 oscillators in total, organized in six groups of three oscillators each. 12 of them can be switched between sawtooth and triangle waves, 6 are fixed sawtooth oscillators. The oscillators are not meant to be controlled by CVs, but only set static with a knob. By mixing them, very dense drones and clusters can be created.
DRONX - a special mixer designed especially for the DRONE38 module; it has 6 input channels with sound processing capabilities: a tone control with bass and treble control, a distortion, and finally a dual delay with different algorithms.
2VCA - contains two separate voltage controlled amplifiers; the classic module to shape the volume of a sound that is fed to IN by a control voltage, e.g. from an ENV to the CV input. DC/CV or audio operation modes, an additional knob per VCA for attenuation.
SVFILTER - offers control of cutoff frequency, resonance and CV attenuation; two signal inputs for different signal levels control the "drive" of the module. This filter has a significant self resonance and also a very quick response to cutofffrequency changes. LP, BP, and HP output.
LFO (2x) - generates modulation voltages mostly below the audio range. PWM modulation for the Pulse out, two frequency ranges (SLOW / FAST), three separate output signals: Square (even duty cycle), TRIANGLE/Sawtooth (switchable), Pulse
NOISE - two types of noise with A output generating analog noise (a fluctuating voltage between about 1-4V) and D output generating digital noise, (a random changing 0V / 5V). The RATE knob controls the color of the noise, which goes from almost white noise to a rather harsh and digital sound.
2S&H - "freezes" the input voltage with a trigger input. Typically used for random CV patterns if a noise signal is fed to the input and triggered e.g. by an LFO.
2ATT/CV - simple level attenuation for any kind of signal. Voltage mode switch gives manually controllable CV on the outputs, the INV outputs provide the inverted value of the input.
System is pre-built into a 1x16 Bamboo case and includes switchable 9V PSU, 2 packs of patchwire, and 1 pack of colored knobs."
Monday, January 12, 2026
Yamaha DX-1 SN 1011
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"Original vintage SERVICED Yamaha DX1 in absolutely stunning, collector condition, perhaps the finest example extant. Only 140 of these digital monsters were ever produced, and this paragon is their queen.
She functions flawlessly. Every key, control, parameter and voice is 100%, and she sounds…. Just wow. So huge. So powerful. Scary deep."
via this Reverb listing
"Original vintage SERVICED Yamaha DX1 in absolutely stunning, collector condition, perhaps the finest example extant. Only 140 of these digital monsters were ever produced, and this paragon is their queen.
She functions flawlessly. Every key, control, parameter and voice is 100%, and she sounds…. Just wow. So huge. So powerful. Scary deep."
S8jfou Peeps Music Box
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
You can find demos here.
"Inspired by the legendary Buchla Music Easel. Built by a guy who lives in a wooden cabin in the mountains! Here's his website () It's not really modular or patchable but there are some switches which are based on some of this guy's favourite patches on the Music Easel.
Features
2 Oscillators: First the Mod-Osc is a triangle-wave just a bit sinefolded. Second the Complex-Osc is a sine-wave with a powerful Wavefolder. Mod-Osc can modulate the
Complex-Osc and switch between FM & AM with depth for both. Both Oscillators can be Hard sync for FM synthesis. The Mod-Osc Pitch is bipolar & can go really low to act like an LFO. The Complex Pitch is unipolar. Both have Finetune for AM and not-synced FM harmonic research or perfectly tuning them together.
• 1 LFO Can be sine-wave or random sample&hold. Can act to the pitch of each oscillators & as the clock master for the sequencer.
•2 Lowpass gate One for the Mod Osc & second one for the Complex osc.
2 Lowpass filter One for the mod Osc & second one for the Complex osc.
• 1 Attack Applied to both Osc.
4 Step sequencer Can be set to each Osc & to the Wavefolder. Can run up or up&down. All step can be switched off.
• 2 Channel mixer One channel per oscillators.
• 1 Reverb With mix & time.
•1 Touch sensitive keyboard 13 keys with octave switch up & down which can act on each oscillators.
• 3 Touch plates With their own adjustable pitch.
• 1 Arpeggiator In order mode. Can be sustained, even on several switched octaves. Can be sync to the sequencer or have his own clock"
via this Reverb listing
You can find demos here.
"Inspired by the legendary Buchla Music Easel. Built by a guy who lives in a wooden cabin in the mountains! Here's his website () It's not really modular or patchable but there are some switches which are based on some of this guy's favourite patches on the Music Easel.Features
2 Oscillators: First the Mod-Osc is a triangle-wave just a bit sinefolded. Second the Complex-Osc is a sine-wave with a powerful Wavefolder. Mod-Osc can modulate the
Complex-Osc and switch between FM & AM with depth for both. Both Oscillators can be Hard sync for FM synthesis. The Mod-Osc Pitch is bipolar & can go really low to act like an LFO. The Complex Pitch is unipolar. Both have Finetune for AM and not-synced FM harmonic research or perfectly tuning them together.
• 1 LFO Can be sine-wave or random sample&hold. Can act to the pitch of each oscillators & as the clock master for the sequencer.
•2 Lowpass gate One for the Mod Osc & second one for the Complex osc.
2 Lowpass filter One for the mod Osc & second one for the Complex osc.
• 1 Attack Applied to both Osc.
4 Step sequencer Can be set to each Osc & to the Wavefolder. Can run up or up&down. All step can be switched off.
• 2 Channel mixer One channel per oscillators.
• 1 Reverb With mix & time.
•1 Touch sensitive keyboard 13 keys with octave switch up & down which can act on each oscillators.
• 3 Touch plates With their own adjustable pitch.
• 1 Arpeggiator In order mode. Can be sustained, even on several switched octaves. Can be sync to the sequencer or have his own clock"
MFB 522 Drumcomputer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"This is a rare piece. Perfect condition, recently serviced. Mini 808, sounds great!"
via this Reverb listing
"This is a rare piece. Perfect condition, recently serviced. Mini 808, sounds great!"
RHS Band Moog Prodigy w/ Custom Space Theme Skinned Keyboard
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"This relic has seen some play in its day. Good condition considering the age. There are some cosmetic wear, signage, and the keys have been wrapped with a space graphic. One of the frame screws is missing but isn't structural."
via this Reverb listing
"This relic has seen some play in its day. Good condition considering the age. There are some cosmetic wear, signage, and the keys have been wrapped with a space graphic. One of the frame screws is missing but isn't structural."
Sunday, January 11, 2026
Crumar bit 01 black CEM3328, w/ Tauntek OS & Stereoping Controller
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"It has the CEM3328 filters, sounding great.
I have installed the Tauntek firmware, allowing realtime MIDI control, especially great with the included Stereoping Controller.
The Stereoping Controller has an overlay of the G8-P edition glued and the bit 01 overlay is only thrown above, which works top notch as is and makes it even easier to dust clean (I have some other editions overlays I may include for free if interested)."
via this Reverb listing
"It has the CEM3328 filters, sounding great.
I have installed the Tauntek firmware, allowing realtime MIDI control, especially great with the included Stereoping Controller.
The Stereoping Controller has an overlay of the G8-P edition glued and the bit 01 overlay is only thrown above, which works top notch as is and makes it even easier to dust clean (I have some other editions overlays I may include for free if interested)."
Dewanatron Swarmatron Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
via this Reverb listing
Modded Roland TR-909 Rhythm Composer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"Incredible modified 909. This is the most unique 909 of the 3 I've owned. As you can see in the pic it has Tune Depth, Pitch and Drive for the Kick Drum as well as Hi Hat Tune. The range of what you can do with the Kick is almost unlimited, everything from super tight tuned variation to match the key of your track to absolutely depraved, distorted low end boom. The Hi Hat tune is just that, and between both of these mods they solve the main limitations of the 909."
via this Reverb listing
"Incredible modified 909. This is the most unique 909 of the 3 I've owned. As you can see in the pic it has Tune Depth, Pitch and Drive for the Kick Drum as well as Hi Hat Tune. The range of what you can do with the Kick is almost unlimited, everything from super tight tuned variation to match the key of your track to absolutely depraved, distorted low end boom. The Hi Hat tune is just that, and between both of these mods they solve the main limitations of the 909."
Saturday, January 10, 2026
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%"
Friday, January 09, 2026
1987 Roland TR-707 Rhythm Composer Drum Machine w/ M-64C Memory Cartridge SN 715716
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
"Like a small handful of other sample based drum machines of the mid 1980s, the Roland TR-707 is a punchy beatbox which still has a home in an electronic musician's toolkit. The sounds all sit wonderfully in a mix to this day, and the individual outputs make this a great machine for the most particular of producers.
This unit has been thoroughly tested, includes the M-64C memory cartridge and non-original power supply."
via this Reverb listing
Additional SYNTH CITY Listings
"Like a small handful of other sample based drum machines of the mid 1980s, the Roland TR-707 is a punchy beatbox which still has a home in an electronic musician's toolkit. The sounds all sit wonderfully in a mix to this day, and the individual outputs make this a great machine for the most particular of producers.
This unit has been thoroughly tested, includes the M-64C memory cartridge and non-original power supply."
1980s Kawai R-100 Drum Machine w/ R-50e & R-50III Eprom Mod
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
"1980's Kawai R100 drum machine, loaded with some of the best sounds Kawai offered from this era. Perfect for nailing that 80's industrial sound (ie; Wax Trax!, Ministry, KMFDM, etc).
Sound mod is a single switch on the front of the machine (switch between R-50e & R-50III sounds). Works like a charm, what a beast of a machine!"
via this Reverb listing
Additional SYNTH CITY Listings
"1980's Kawai R100 drum machine, loaded with some of the best sounds Kawai offered from this era. Perfect for nailing that 80's industrial sound (ie; Wax Trax!, Ministry, KMFDM, etc).
Sound mod is a single switch on the front of the machine (switch between R-50e & R-50III sounds). Works like a charm, what a beast of a machine!"
1974 Moog Minimoog Model D 44-Key Monophonic Synthesizer SM 4844
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
"Early Minimoog, circa 1974, built in the Williamsville, NY factory. For its age and heritage it's tuning is very stable, and every thing is working properly. Well worn and loved, for good reason. This is one of the better Minimoogs' we've heard come through our doors. Serial No. 4844.
One of the most influential electronic instruments of the modern era.
Service notes:
-Replaced electrolytic capacitors
-Replaced (4) failed 'tropical fish' capacitors
-Repaired cracked solder connections throughout
-Removed, opened and cleaned several sealed control panel pots
-Cleaned switches and non-sealed potentiometers
-Replaced keybed bushings and reset key positions
-Cleaned buss bars and key contacts
-Cleaned keybed
-Cleaned pcb edge connectors and sockets
-Cleaned calibration trim pots
-Calibrated, ran for several hours then rechecked calibration
-Removed and cleaned sealed bender and modulation potentiometers
-Removed old remaining film from front panel"
via this Reverb listing
Additional SYNTH CITY Listings
"Early Minimoog, circa 1974, built in the Williamsville, NY factory. For its age and heritage it's tuning is very stable, and every thing is working properly. Well worn and loved, for good reason. This is one of the better Minimoogs' we've heard come through our doors. Serial No. 4844.
One of the most influential electronic instruments of the modern era.
Service notes:
-Replaced electrolytic capacitors
-Replaced (4) failed 'tropical fish' capacitors
-Repaired cracked solder connections throughout
-Removed, opened and cleaned several sealed control panel pots
-Cleaned switches and non-sealed potentiometers
-Replaced keybed bushings and reset key positions
-Cleaned buss bars and key contacts
-Cleaned keybed
-Cleaned pcb edge connectors and sockets
-Cleaned calibration trim pots
-Calibrated, ran for several hours then rechecked calibration
-Removed and cleaned sealed bender and modulation potentiometers
-Removed old remaining film from front panel"
E-MU Systems Drumulator with Drum Pad Programmer System
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"This classic drum machine / sampler is in near mint condition and is accompanied by it’s super rare drum pad attachment for triggering sounds. Both have been newly serviced with a new power supply."
via this Reverb listing
"This classic drum machine / sampler is in near mint condition and is accompanied by it’s super rare drum pad attachment for triggering sounds. Both have been newly serviced with a new power supply."
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
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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
