via this listing
Additional Perfect Circuit listings
Showing posts with label Auctions. Show all posts
Showing posts with label Auctions. Show all posts
Friday, November 28, 2025
Analogue Solutions Vostok 2020 Semi-Modular Analog Synthesizer SN 11500
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 Polybrute Noir Polyphonic Analog Keyboard Synthesizer
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
BASTL INSTRUMENTS THYME+ DESKTOP DIGITAL TAPE EFFECT UNIT
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Signal Sounds listings
via this listing
Additional Signal Sounds listings
EOWAVE QUADRANTID SWARM DESKTOP SYNTHESIZER
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Signal Sounds listings
via this listing
Additional Signal Sounds listings
Korg Mono/Poly synthesizer SN 373830
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
Additional Tone Tweakers Listings
"This unit was meticulously refurbished over approximately 16 hours, resulting in an instrument that works better than the rest...and is justifiably pricier, but is ready to use professionally. The person who sold us this unit said it was working fine, but in reality, it had several significant problems and needed a full and costly overhaul, including a $200 part (and others).
37383x
Here's a list of some of the work we did to this unit:
Cleaned unit inside and out.
Rebuilt power supply (replaced electrolytic capacitors) (future-proofing measure)
Replaced all electrolytic capacitors throughout unit (future-proofing measure)
Recalibrated. All ok.
Cleaned all potentiometers.
Cleaned all switches.
Cleaned all key contacts.
If you have one of these you’d like properly restored, we can help!"
via this eBay listing
Additional Tone Tweakers Listings
"This unit was meticulously refurbished over approximately 16 hours, resulting in an instrument that works better than the rest...and is justifiably pricier, but is ready to use professionally. The person who sold us this unit said it was working fine, but in reality, it had several significant problems and needed a full and costly overhaul, including a $200 part (and others).
37383x
Here's a list of some of the work we did to this unit:
Cleaned unit inside and out.
Rebuilt power supply (replaced electrolytic capacitors) (future-proofing measure)
Replaced all electrolytic capacitors throughout unit (future-proofing measure)
Recalibrated. All ok.
Cleaned all potentiometers.
Cleaned all switches.
Cleaned all key contacts.
If you have one of these you’d like properly restored, we can help!"
MOOG SAMPLE AND HOLD MODEL 1125 SN 2148
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
Additional Tone Tweakers Listings
"Sample-hold controller for Minimoog, Sonic 6, Moog Modular, Micromoog, etc. Professionally serviced over approximately 8 hours, throughly tested and in full working order.
In addition to any repairs, we did the following:
Cleaned and lubed all potentiometers.
Replaced Jones connectors for reliability (6p plug, 8p socket, 8p plug)
Cleaned unit inside and out.
Replaced 2p Jones plug.
Replaced electrolytic capacitor (10/50 x1)
Replaced tantalum capacitors (5)"
via this eBay listing
Additional Tone Tweakers Listings
"Sample-hold controller for Minimoog, Sonic 6, Moog Modular, Micromoog, etc. Professionally serviced over approximately 8 hours, throughly tested and in full working order.
In addition to any repairs, we did the following:
Cleaned and lubed all potentiometers.
Replaced Jones connectors for reliability (6p plug, 8p socket, 8p plug)
Cleaned unit inside and out.
Replaced 2p Jones plug.
Replaced electrolytic capacitor (10/50 x1)
Replaced tantalum capacitors (5)"
Acidlab Bombass - Analog monosynth
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"VERY rare synth that's in fantastic condition both functionally & cosmetically... Near Mint! Includes a European PSU so you'll need to source your own North American one -or- use a step-up transformer. FREE SHIPPING!! Continental USA buyers only."
via this Reverb listing
"VERY rare synth that's in fantastic condition both functionally & cosmetically... Near Mint! Includes a European PSU so you'll need to source your own North American one -or- use a step-up transformer. FREE SHIPPING!! Continental USA buyers only."
Blue Roland SH-101 Monophonic Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"Roland SH-101 (1982-1986), 1-VCO monophonic synthesizer with sequencer.
Compact yet just perfectly sized, plastic but sturdy, simple yet full of useful features. Not only one of Roland company's best looking designs, it is also a rare foray for Roland into 3rd party ICs - Curtis Electromusic's CEM3340 VCO chip granted SH-101 its distinctive rich tone. Needless to say that SH-101 defined the sound of IDM, early house and techno, and still rocks on!
This is a rare blue model that has been carefully serviced inside and out, which included replacing all of the electrolytics, cleaning all of the potentiometers, replacing some unstable sliders, as well as performing general cleaning. All the functions have been tested and re-tested.
The cosmetic condition could have been described as excellent if not for some of the plastic screw posts _inside_ the case. Those are notoriously brittle, but have been restored to the best of our abilities."
via this Reverb listing
"Roland SH-101 (1982-1986), 1-VCO monophonic synthesizer with sequencer.
Compact yet just perfectly sized, plastic but sturdy, simple yet full of useful features. Not only one of Roland company's best looking designs, it is also a rare foray for Roland into 3rd party ICs - Curtis Electromusic's CEM3340 VCO chip granted SH-101 its distinctive rich tone. Needless to say that SH-101 defined the sound of IDM, early house and techno, and still rocks on!
This is a rare blue model that has been carefully serviced inside and out, which included replacing all of the electrolytics, cleaning all of the potentiometers, replacing some unstable sliders, as well as performing general cleaning. All the functions have been tested and re-tested.
The cosmetic condition could have been described as excellent if not for some of the plastic screw posts _inside_ the case. Those are notoriously brittle, but have been restored to the best of our abilities."
Oberheim DMX 8-Voice Drum Machine SN 822119
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"Oberheim DMX in very good condition. Please check out the photos as there is a little crack on the red display protector along with some scratches on the unit in a couple of spots. This one has easy access to open it up and switch out the EPROMS."
Pics of the inside below.
via this Reverb listing
"Oberheim DMX in very good condition. Please check out the photos as there is a little crack on the red display protector along with some scratches on the unit in a couple of spots. This one has easy access to open it up and switch out the EPROMS."
Pics of the inside below.
Thursday, November 27, 2025
Custom Alesis A6 Andromeda
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
via this Reverb listing
Dreadbox Hades Desktop Analog Semi-Modular Synthesizer
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via this listing
Additional Perfect Circuit listings
Also see Perfect Circuit's Black Friday Sale
via this listing
Additional Perfect Circuit listings
Also see Perfect Circuit's Black Friday Sale
Roland D-50 Digital Keyboard Synthesizer
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Perfect Circuit listings
Don't for get to check out Perfect Circuit's Black Friday Sale
via this listing
Additional Perfect Circuit listings
Don't for get to check out Perfect Circuit's Black Friday Sale
WALDORF IRIDIUM CORE DESKTOP SYNTH
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via this listing
Additional Signal Sounds listings
via this listing
Additional Signal Sounds listings
TASTY CHIPS GR1 DESKTOP GRANULAR SYNTH
Note: links to listings are affiliate links for which the site may be compensated.
via this listing
Additional Signal Sounds listings
"A pre-owned Tasty Chips GR1 in very good condition. It comes with original packaging and accessories.
Manufacturer's description The GR-1 is a granular hardware synthesizer. Creating textures, characteristic sounds, drones, soundscapes, and pads has never been easier. When you are working on a unique sound, it’s always nice to have hands-on controls to easily dial in the sweet spots. The possibility to quickly adjust any parameter of your sound is necessary to adapt to the workflow of any user. Trace every adjustment you make with the built-in 7″ full-color display that is typically only found in top-class synthesizers."
via this listing
Additional Signal Sounds listings
"A pre-owned Tasty Chips GR1 in very good condition. It comes with original packaging and accessories.
Manufacturer's description The GR-1 is a granular hardware synthesizer. Creating textures, characteristic sounds, drones, soundscapes, and pads has never been easier. When you are working on a unique sound, it’s always nice to have hands-on controls to easily dial in the sweet spots. The possibility to quickly adjust any parameter of your sound is necessary to adapt to the workflow of any user. Trace every adjustment you make with the built-in 7″ full-color display that is typically only found in top-class synthesizers."
SEQUENTIAL TOM 420 Serviced w/ Extras
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"This legendary drum box has been fully serviced to perfection, ensuring it performs just like it did back in the day, if not better. Don't let the blemishes in it's paint fool you. This TOM Drum Machine has been fully gone through from top to bottom. Nothing has been left to chance. Totally rebuilt to function beyond brand new.
Here's what makes it a must-have:
- Complete Rebuild of Power Supply: Featuring new rectifying diodes, filter capacitors, and voltage regulators for unmatched reliability.
- All New Tactile Switches: Every single switch on this unit has been unsoldered and replaced with a brand new part. Guaranteeing that you will not have a switch fail in the next 30+ years. You will get smooth, responsive, operation. We use OMRON brand tactile switches, the best and built to last.
- Fully Expanded Sequencer Memory (RARE): A rare expansion option from Sequential back in the day, and even more rare now. Very few SCI TOM in the world have expanded sequencer memory. This upgrade more than quadrupled the available pattern storage memory. More room for your beats, making this a highly coveted feature.
- Tauntek TOM16 CPU Upgrade: The famed Tauntek MOD is no longer made. This update to the SCI TOM enhances performance, adding new features to the TOM that allow you to switch the sounds on the fly.
- 16 Internal Sound banks (Cartridges): This modification also builds in 16 expansion cartridges worth of sounds, accessible through the user interface. This upgrade includes all original SCI Factory Carts and the best from DRUMWARE (DigiDesign).
- HKA Designs 'Classics Cartridge': On top of the 16 built in sound banks, the HKA Classics Cart adds eight more cartridges worth of sounds from Legendary drum computers from Oberheim DMX and DX, Linn DRUM and LM-1.
- Printed Manual: A reproduction printing of the original TOM 420 manual that details all the features and functions so that you can jump straight in to producing awesome retro grooves with the famed Sequential drum machine.
- Rugged IP67 Water & Dust proof Flight Case: Your SCI TOM will ship in a custom fit, lockable 🔒 Rugged IP68 💦 Waterproof / Dust-proof Impact Resistant Protective Flight Case. Making sure that your investment arrives to you in ultimate safety and comfort."
via this Reverb listing
"This legendary drum box has been fully serviced to perfection, ensuring it performs just like it did back in the day, if not better. Don't let the blemishes in it's paint fool you. This TOM Drum Machine has been fully gone through from top to bottom. Nothing has been left to chance. Totally rebuilt to function beyond brand new. Here's what makes it a must-have:
- Complete Rebuild of Power Supply: Featuring new rectifying diodes, filter capacitors, and voltage regulators for unmatched reliability.
- All New Tactile Switches: Every single switch on this unit has been unsoldered and replaced with a brand new part. Guaranteeing that you will not have a switch fail in the next 30+ years. You will get smooth, responsive, operation. We use OMRON brand tactile switches, the best and built to last.
- Fully Expanded Sequencer Memory (RARE): A rare expansion option from Sequential back in the day, and even more rare now. Very few SCI TOM in the world have expanded sequencer memory. This upgrade more than quadrupled the available pattern storage memory. More room for your beats, making this a highly coveted feature.
- Tauntek TOM16 CPU Upgrade: The famed Tauntek MOD is no longer made. This update to the SCI TOM enhances performance, adding new features to the TOM that allow you to switch the sounds on the fly.
- 16 Internal Sound banks (Cartridges): This modification also builds in 16 expansion cartridges worth of sounds, accessible through the user interface. This upgrade includes all original SCI Factory Carts and the best from DRUMWARE (DigiDesign).
- HKA Designs 'Classics Cartridge': On top of the 16 built in sound banks, the HKA Classics Cart adds eight more cartridges worth of sounds from Legendary drum computers from Oberheim DMX and DX, Linn DRUM and LM-1.
- Printed Manual: A reproduction printing of the original TOM 420 manual that details all the features and functions so that you can jump straight in to producing awesome retro grooves with the famed Sequential drum machine.
- Rugged IP67 Water & Dust proof Flight Case: Your SCI TOM will ship in a custom fit, lockable 🔒 Rugged IP68 💦 Waterproof / Dust-proof Impact Resistant Protective Flight Case. Making sure that your investment arrives to you in ultimate safety and comfort."
Sequential DrumTraks 12-Voice Drum Machine SN 1103
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
"One of the earliest MIDI capable drum machines, the Sequential Circuits Drumtraks is punchy, unique, and will integrate effortlessly into a contemporary studio. The sound of this thing is fantastic, with 13 8-bit sample based drum sounds and a powerful pattern sequencer. This drum machine is fully tested and in great working condition. Serial No. 1103"
via this Reverb listing
"One of the earliest MIDI capable drum machines, the Sequential Circuits Drumtraks is punchy, unique, and will integrate effortlessly into a contemporary studio. The sound of this thing is fantastic, with 13 8-bit sample based drum sounds and a powerful pattern sequencer. This drum machine is fully tested and in great working condition. Serial No. 1103"
Oberheim OB-8 61-Key 8-Voice Synthesizer SN C50516
Note: links to listings are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
"This monstrous synth is in great shape and sounds fantastic. There are eight analog voices which can be panned individually for some really interesting stereo sounds. The keyboard can be split or doubled and there are two oscillators per voice. It is a very warm sounding synth great for massive chords, basses and leads. This model has MIDI in out and thru.
It is quite a beast, with all the great 80s vibe and that classic Oberheim sound. In fantastic working and cometic condition overall. Serial No. 050516
Service notes:
-Replaced firmware IC
-Replaced several failied CMOS logic chips
-Recapped bend assembly and processor pcbs
-Repaired D/A converters on voice boards
-Cleaned panel controls
-Fully calibrated
-Repaired autotune circuit
-Replaced missing hardware"
via this Reverb listing
Additional SYNTH CITY Listings
"This monstrous synth is in great shape and sounds fantastic. There are eight analog voices which can be panned individually for some really interesting stereo sounds. The keyboard can be split or doubled and there are two oscillators per voice. It is a very warm sounding synth great for massive chords, basses and leads. This model has MIDI in out and thru.
It is quite a beast, with all the great 80s vibe and that classic Oberheim sound. In fantastic working and cometic condition overall. Serial No. 050516
Service notes:
-Replaced firmware IC
-Replaced several failied CMOS logic chips
-Recapped bend assembly and processor pcbs
-Repaired D/A converters on voice boards
-Cleaned panel controls
-Fully calibrated
-Repaired autotune circuit
-Replaced missing hardware"
Emu EIII Emulator 3 Three
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
Additional Tone Tweakers Listings
"This is not your typical Emulator III. This unit has been meticulously refurbished over dozens of hours, sparing no expense, and thoroughly tested, and is working great. RS-442 interface and external SCSI devices were not tested since we don't have external devices for testing. We see no reason for them not to work but only because we didnt test them, we cant guarantee it. Will be packed right to arrive intact. Will ship internationally."
via this eBay listing
Additional Tone Tweakers Listings
"This is not your typical Emulator III. This unit has been meticulously refurbished over dozens of hours, sparing no expense, and thoroughly tested, and is working great. RS-442 interface and external SCSI devices were not tested since we don't have external devices for testing. We see no reason for them not to work but only because we didnt test them, we cant guarantee it. Will be packed right to arrive intact. Will ship internationally."
Emu Vintage Keys Plus SN 039401016
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
Additional Tone Tweakers Listings
via this eBay listing
Additional Tone Tweakers Listings
Suzuki Q Chord Digital Guitar QC-1 with Case 10 Cartridges, And Manual
Note: links to listings are affiliate links for which the site may be compensated.
via this eBay listing
via this eBay listing
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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
