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Roland Juno-106

“Up for sale, a 1980s Roland Juno-106 analog synthesizer in excellent condition and in perfect working order. Freshly serviced by Synapse Audio Systems, this Juno functions exactly as intended, outfitted with new voice chips, calibrated and loaded with the factory presets. The Juno 106 is one of the most enduringly popular Roland synths of the ’80s, virtually the same synth engine as its predecessor the Juno 60, yet with extensive MIDI capability and over twice the patch memory storage (128 patches).

The Juno-106 is a six-voice polyphonic and programmable analog synth with one digitally controlled oscillator (DCO) per voice. The Juno-106 uses built-in Chorus to fatten up its sound to dramatic effect too. The nature of the Juno’s DCO results in a sound that is stable, always in perfect tune, but still warm and analog. The Juno features an excellent 24dB/oct analog lowpass filter with plenty of resonance and self-oscillating possibilities as well as a non-resonant high pass filter. The programmable pitch/mod bender can be assigned to control the DCO pitch, VCF cutoff, and LFO amount all at once or individually.

All functions and features of this Juno operate as intended. A keyboard originally designed for sale within Japan, a new 120v power transformer has been installed, along with a new IEC power cable receptacle with chassis ground and a new battery. This is a clean example, with cosmetic wear limited to just a few minor marks on the enclosure, localized scratches on the upper right corner (north of the Juno text) and some scuffing on the bottom. The graphics are pristine, the key caps are bright white, and all slider caps and knobs are intact.

A carrying case is included and while a functional tote, there is a tear along the zipper on top.” Click here to visit listing on eBay

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Roland JD-800

“Hey there, I’m selling a JD-800 synth in great shape that is fresh from an overhaul, but has one key (marked with blue tape) that’s now acting up a bit. Not sure what’s going on there, but the other keys are working normally.

I’d love to keep this, but tax season is upon us and I will need the funds.

This is ONLY available for local pickup in Anaheim, CA 92805!
JD-800’s are too fragile to ship, sorry. :/

Here’s the good:
-$520 in work has been put into this synth, paperwork included
-Cosmetically pretty dang nice! No cracked plastic parts (very common problem after shipping + handling)
-Red glue removed, cleaned off everything, weights re-glued
-New key contacts
-New key domes/membranes
-New filter cutoff slider
-DAC calibrated
-AFTERTOUCH WORKS NOW!! (Most JD-800’s don’t have working aftertouch anymore)
-Buttons working as they should
-Sliders and knobs working as they should
-Comes with 2 rare cards! (Dance Drums: PCM + Data) plus power cord

The vintage quirks:
-One D sharp key (the one marked with blue tape) only triggers at higher velocities. Noticed this some time after I got it home again.
-Original orange LCD screen occasionally flickers between extra bright and normal brightness, usually on a cold start. Screen is still working otherwise. Small complaint there.

Despite those two things, this synth is ready to play and tweak and would be an excellent addition to any synth studio/collection. Now might be your last chance to buy one of these in working order for a while.” Click here to visit listing on eBay

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Roland SA-09

“Immerse yourself in the vintage warmth of the Roland SA-09 Saturn09, a powerful analog organ synthesizer that redefines sonic fidelity. Crafted with the distinguished Roland brand, this keyboard synthesizer offers a rich tapestry of sound, emulating the classic analog charm that musicians and sound engineers alike crave. With its robust analog architecture, the Roland SA-09 delivers an authentic audio experience, perfect for enthusiasts looking to recreate the iconic sounds of the past.

This keyboard is in excellent condition as you can see, it has been tested and works perfectly. There is some marks from use so please view all of my detailed photos. The power wire has tape around it shown in photos. The sound this unit produces is amazing and i couldn’t stop playing it!! ” Click here to visit listing on eBay

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Korg 01/W pro X

“Keyboard Korg 01/W PRO X 88-key Keyboard Synthesizer . Works Good. Pre-owned shows some Cosmetic wear. Please view all pictures. It sounds Great!!!” Click here to visit listing on eBay

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Korg MS-20

“I’ll start by saying, the new versions are def cool, but not even close in raw tone. The original is still the real deal. These are quirky, cool synths… the best of Japanese Filters for sure. Gritty, gnarly and more. Two OSCs of sweet tone. Notice there is no screw on the VCA section panel.. this is an original 35 filter version.. known to be much more aggressive in tone and much rarer than the latter filters : ) Has USA 117v power.. not 100 : )” Click here to visit listing on eBay

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Yamaha SY99 Project Machine

“Yamaha Sy99 Synthesizer Keyboard AS IS PARTS REPAIR. Turns on. Some of the voices have weird sounds that don’t sound right so selling as is. SOLD AS IS PARTS REPAIR. Overall in decent cosmetic condition as seen in photos.”
Click here to visit listing on eBay

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Yamaha TX802

“For sale. Yamaha TX 802 rack module. It is in close to perfect cosmetically and working order. It includes a DX Ram cartridge
for loading customized patches.” Click here to visit listing on eBay

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Yamaha CS-20M Project Machine

“This amazing synth is in need of a full restoration. It was briefly plugged in and powered on however due to its age, was not fully tested. All the knobs, buttons and switches are there and one of the keys is cracked but can be easily repaired. It needs work but is still considered a highly desired synth and are very hard to come across. It is a heavy unit and will be carefully and properly packaged for shipping.” Click here to visit listing on eBay

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Sequential Circuits Prophet 2002 Plus

“This listing is for a Sequential Circuits Prophet 2002 Plus sampler with a GOTEK usb stick/floppy drive. The original floppy drive can be included if you’d like it as well.

Non-smoker owned and studio used” Click here to visit listing on eBay

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ARP Odyssey

“This vintage ARP Odyssey has just been serviced by Synthchaser in March 2025 – recapped, new key bushings, all new LED sliders, fully functional, tuned and calibrated, and sounding awesome! The Odyssey was ARP’s answer to the Minimoog, a feature packed scaled down version of the legendary ARP 2600. This late model ARP Odyssey is equipped with the 4075 filter, a tasty 4 pole LPF found in all late model ARP synths.

The Mk III Odyssey has a cool Black & Orange design that complements other ARPs of the era, and has the PPC touch pads for pitch bend and vibrato (and yes, they are working on this Odyssey!)

Here is a video functional demonstration of this synth that is for sale: (video coming later today)

The synth is in very good condition. The small panel underneath the synthesizer that provides access to the key contacts is not original. This synth comes with Orange illuminated LED sliders to complement the Orange & Black color scheme of this late model ARP. I can disable the illumination for the buyer before shipping, upon request at the time of purchase.

Work completed on the synth included:

Synthchaser Precision LED slider upgrade – All 34 of the old original sliders have been replaced with new, smooth, high precision LED illuminated sliders. The difference in the way these sliders feel and perform compared to the originals is a huge improvement. LEDs run off their own power supply mounted inside the synth.
Illuminated slider caps – Slider caps with a translucent plastic stripe that allows the LED illumination to shine through, while giving you something substantial to grip onto. They look and feel awesome!
Power supply rebuilt – All tantalum and electrolytic capacitors in the power supply have been replaced, and high quality, high temperature 105 deg C capacitors have been used for the power supply filter capacitors.
All tantalum capacitors replaced – The tantalum capacitors in ARP synths are ticking time bombs. All tantalum capacitors in this synth have been replaced with electrolytics to help provide stable operation for years to come.
4075 Filter Enhancement – This ARP Odyssey uses 4075 filter submodule found in all late model ARP synthesizers like the Quadra and the Omni. This filter was designed with a calculation error that limited the cutoff frequency. The 4075 filter submodule has been recapped, corrected to provide superior frequency response, and tested for proper operation in the Synthchaser custom test fixture
Keyboard rebuild – New key bushings installed, keys removed and ultrasonically cleaned, bus bars removed and polished, key contacts cleaned and adjusted.
Oscilloscope calibration – Calibrated & tuned using oscilloscope and frequency counter.” Click here to visit listing on eBay

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E-Mu Emulator IV

“For your consideration, here is a E-MU Emulator IV keyboard in good cosmetic condition in perfect working condition. I opened it up and removed the internal hard drive when I bought it some years ago because it was noisy making some kinda racket. I recommend a external Scsi drive to save sounds to, and also a CD-ROM drive if you want to buy preset sounds for it as there are many good Emulator sample libraries out there for the EIV. The floppy drive does work but does not provide sufficient space to save any longer samples or multiple samples.

I suppose someone may could install a card reader in place of the floppy drive, but I have never researched wether that is possible or not.

This Emulator IV includes the following

Original O.S. floppy disk and USB floppy drive for transferring sounds to and from a computer.

E-MU volume pedal

4 channel Mogami TRS snake cable for stereo output and stereo input.” Click here to visit listing on eBay

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Mannequins Three Sisters

“RARE – only 500 of these were ever made. 100% functional, in excellent cosmetic condition, and it sounds great! There are some minor scratches on the top & bottom of the unit, but the faceplate is super-clean (please examine the photos closely). It has lived in a smoke-free studio and has been well taken care of. Power adapter & user manual is included. “ Click here to visit listing on eBay

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Waldorf Q

“PLEASE NOTE: Missing cut off Knob and power cable. I lost the power cable, but when I had it, it worked just fine. Sat in my closet (covered) for years” Click here to visit listing on eBay

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Waldorf Blofeld

“The Waldorf Blofeld is a desktop synthesizer made by Waldorf in Germany. It features a synth-type keyboard and is modeled after the classic Blofeld character. This synthesizer is designed for music production and is perfect for creating unique sounds and melodies. With its high-quality construction and advanced features, the Waldorf Blofeld is a must-have for any serious musician.” Click here to visit listing on eBay

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Oberheim Matrix-1000 w/ Kiwi-1000 mods & KiwiTechnics Patch Editor

“Up for grabs is a pair of Oberheim Matrix 1000 modules, both upgraded with the now-discontinued KiwiTechnics Kiwi-1000 v1.52 (the last supported version of the upgrade). Units will ship in a Gator 2U rack case.

Also included is a KiwiTechnics Patch Editor (also discontinued).

The upgrade modules have consecutive serial numbers, and the Oberheims have relatively close serial numbers. Because both units were meticulously serviced before the upgrades were installed, I have always considered these a “matched” pair. They are currently loaded with identical patch sets (2000 editable patches per unit!).

Matrix 1000 synths are mono-only: I used the pair to provide a lush stereo field by slightly detuning one unit and panning them hard-left/hard-right.

Servicing and upgrades were performed simultaneously by The Analog Lab.

Also included is a CD with all the firmware and documentation files that KiwiTechnics would give to me for both products. Please note that there is a version 1.60 of the Kiwi-1000 firmware, but I have been hesitant to use it because the product is now not supported.

Everything works perfectly, and the synths sound awesome. There are absolutely no issues – these synths are as rock solid as they come and work flawlessly. The only reason I am selling is because I have sampled all of my analog synths and don’t use/gig them anymore.” Click here to visit listing on eBay

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Teenage Engineering OP-1

“OP1 original in near mint condition. Can clean up to mind condition if you prefer. Comes with travel box and all original accessories are included. Purchase brand new and now is an extra instrument that could use a new happy home.” Click here to visit listing on eBay

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PAiA MIDI 2 CV

“This unit was hand-built by the legendary John Blacet. I have not plugged it in for years but I have no reason to believe it doesn’t work as intended. Unfortunately, I can’t test it (sorry, I hate to list things that I can’t test). Therefore, sold as-is” Click here to visit listing on eBay

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Flame Tame Machine

“Flame Tame Machine Eurorack Synthesizer Module Quantizer Beatlooper used condition some rack rash all is working comes with module and power cable only. ” Click here to visit listing on eBay

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Roland TR-505

“Really nice piece , found in garage sale in stiraphome …. No cords ” Click here to visit listing on eBay

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Roland SH-101 with Roland MGS-1 Modgrip

“Roland SH-101 Monophonic Bass Synthesizer Please Read Condition w/ Mod Grip

Unit works but I am not sure that it works 100%. I am not sure what each individual selector is supposed to do. Some of them do not seem to do anything.

Missing battery compartment cover and 2 of the level control knobs. Level can still be adjusted. At least 4 of the level controls are bent.

I wiped this down fairly well. It was quite dirty & dusty when I received it. It could still use more cleaning. There might be discoloration from smoke damage, I am unsure.

Strap buttons have mismatched screws & are the wrong size. Included AC adapter is an aftermarket replacement generic brand.

One screw on the bottom is missing.

Battery compartment is dirty but I do not see any evidence of battery leakage. Battery operation has not been tested.

Significant white noise is present especially when adjusting volume.

The only I/O tested was the 1/4″ jack. Other I/O may or may not work.

Only includes Roland SH-101, modulation grip & aftermarket generic AC adapter.

Does NOT include batteries (6 C 1.5V), instructions, cables, original packaging, amplifier, etc. An external keyboard amp and speakers are required for use.

Due to the high value of this item the serial number in battery compartment and on PCB have been recorded & an invisible mark has been hidden on unit. Upon a return request serial numbers will be matched before refund will be issued. ” Click here to visit listing on eBay

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Roland CMU-800R

“VINTAGE ROLAND CMU-800R COMPU MUSIC INTERFACE with original manual, program disk and service manual.

Pre-MIDI sequencing at its best. 4 independent outputs: Rhythm, Chord, Bass, Melody – plus a mix output – each with individual control. ” Click here to visit listing on eBay

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Roland OP-8

“Assortment of Patch cords included.” Click here to visit listing on eBay

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Yamaha SY-55

“Up for sale is a truly beautiful/ 100% fully functional Yamaha SY55 for sale. Unit is in absolutely amazing condition and seems as though it has had very minimal usage. Plays and sounds gorgeous. Unit will come with a sturdy/ form fitting foam insert hard carry case. I ship fast, safe and secure always” Click here to visit listing on eBay

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Yamaha FB-01

“Tested in good working condition. Comes the original box. No instructions. Please pictures” Click here to visit listing on eBay

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Yamaha DX100

“Works great. No issues. Clean battery compartment. ” Click here to visit listing on eBay

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Yamaha FB-01

“80s Half Rack FM Digital synth, includes some great classic FM sounds including a version of the famous Lately Bass. Only selling because I have 3.” Click here to visit listing on eBay

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Yamaha DX100 Project Machine

“as you can see in the picture it powers on when I plugged it in the synth was making sounds as I made different selections but the digital display is scrambled. also needs a thorough cleaning. whatever is on the keys wiped up with a basic cleaner. no corrosion in the battery Bank. no power supply included” Click here to visit listing on eBay

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Sequential Circuits Prophet 600

“This vintage synth exhibits slight signs of cosmetic wear consistent with its age but remains fully operational and functions as intended.

I replaced the key contacts, two weeks ago.

The synth is missing 1 screw on an end panel, as you can see from one of the photos.

I have had this synth for about 20 years and hate to see it go. I just have too much STUFF and I need to let some things go to a new home.” Click here to visit listing on eBay

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ARP Omni

“Step right up, synth lovers! Here we have a vintage ARP Omni (MK1), straight out of the golden era of warm, juicy analog sounds. If you’ve ever wanted to channel the magic of classic ‘70s and ‘80s synth tones, this beauty is ready to transport you there. Think lush strings, punchy bass, and that unmistakable ARP phasing that made legends out of mere mortals.

✨ Features & Highlights:

✅ Rich, vintage string ensemble goodness

✅ Classic analog bass with that chef’s kiss warmth

✅ Phat polyphonic chords for dreamy soundscapes

✅ Retro vibes in all the best ways

This Omni has seen its fair share of jam sessions but is ready for a new home. It’s been tested and is working, but hey—it’s vintage! So expect a little character, just like all great rockstars. ” Click here to visit listing on eBay

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Oberheim Matrix 1000 Project Machine

“NOT WORKING – Oberheim Matrix-1000 is a vintage classic for synth lovers, a six-voice analog rackmount powerhouse brimming with rich Oberheim character. Known for its lush, warm sounds, the Matrix-1000 packs 1,000 factory presets, each capable of delivering the kind of depth and character that digital emulations can only aspire to replicate. From buttery pads to sizzling leads and rumbling basses, it’s a genuine piece of synthesizer history. This unit is NOT in working condition. Powers up, but no sound.” Click here to visit listing on eBay