” Up for sale is this rare, vintage 1980s Sequential Circuits Multi-Trak 6-voice polyphonic analog synthesizer. Synth is in overall good condition. Shows minor signs of wear & use. Has a massive sound & really fun to mess with, especially the chorus section! All the parameters seem to function properly, however the Pitch Bend wheel is not working (feels stuck). The ModWheel is working properly though and feels great. Comes with power supply cord.” Click here to search for synths on eBay
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“I don’t need to tell you keyboard wizards how rare this is or its musical pedigree! There are none to be had now and I am reluctantly parting with her due to a downsize house move. I have owned this synth from New and imported it around 1974. Unfortunately I don’t have the original box though! This keyboard is in very good condition with all original knobs and sliders and there are no scratches or damage. Please note I am aware of one minor fault where the sustain mode is on all the time but I am told this is not a major problem? I am not being greedy but I am not giving her away either! I just want it to go to an enthusiast who will continue to care for her. I would prefer buyer collect for obvious reasons but am prepared to courier it if needed (UK around £50 delivered I think).”
“ARP Pro Soloist 2701 classic synthesizer vintage with Anvil road case. Very good condition.” 
“So I bought this about 6 months ago and am not using it. It’s working pretty well for a synth from the late 1970’s. As you can see from the invoice picture it was gone over and updated quite a bit by Synthchaser in California. This was before I purchased it. there are still a few issues I’ve noticed. There is sometimes a light click when keys are depressed coming through the amp. The string section seems just a little noisy, but this could be the era in which it was made? Not sure. Also the string section will occasionally cut out, but I’ve tracked this down to a wiring harness which I will mark. Not sure if it’s a wire or the plug. So it needs a little attention and it does have some cosmetic rust and wear, but overall it’s a pretty cool vintage board. I just don’t have the time for it. ” 
” Hey guys I’m selling my Oberheim Matrix 6 analog synthesizer. It has been used exclusively in smoke free studio environments. Physically is in good working order, but from time to time will have a screen freeze and the unit needs to be turned off and then on, and randomly will not turn on – this may require maintenance in the future so I’m selling it at a reduced price. Other than that the synth sounds great, keyboard is in good condition and cosmetically the synth looks pretty good.”
“Oberheim OB-8 Keyboard Synthesizer With MIDI. Has Issues, Sold AS IS No Returns. Problem(s) possible in Autotune circuitry or S/H. Voices 4, 5 & 8 may or may not always tune. Other voices seem fine. Needs a proper calibration. In great cosmetic condition. MIDI and all other functions such as the panel, pitch bend and CPU operation & keyboard seem to work fine. If you know a tech who is familiar with these problems it should be a keeper. It shows no signs of mold or misuse. ”
“Kawai K1r module in very good condition see pictures.” 
“Scratched screen and blown speaker, both easily replaceable. Works like a dream, great battery life!” 
“Gently used op-1 with official case and original cord. Used in a nonsmoking studio. Nothing wrong with it just clearing out some stuff”
“If you are like me, when you are buying a high-end instrument on eBay, you want a greater assurance than “It looks great to me, but I’m no expert, and no returns!” That’s why I put nearly $200 into having this Moog Prodigy 336A Synthesizer professionally inspected and serviced before listing on eBay. It is ready to gig! I took it to Music Technolgy in Springfield, Virginia, the premier Washington, DC, experts in vintage music electronics. (Check them out on Yelp, these guys know what they are doing.)
“You are bidding on a vintage REALISTIC RADIO SHACK TANDY MOOG SYNTHESIZER MODEL NO. 42-4000 CONCERTMATE (CONCERT MATE) MG-1 in very clean condition. The only damage I see is a repaired key which works fine and is shown in pics. Comes with a downloaded manual. There is no reserve. Payment is via Paypal. Buyer pays all shipping costs. Feel free to ask all the questions you want, but please ask them before you bid. Item is being sold “as is” with no returns. ”
“Selling a CSQ-600 in fully working condition and was recently serviced and fully recapped with high-quality caps- ready to be used again. There are 4 CV tracks and this unit can be synced or provide master sync to any vintage Roland unit. This is the 100V version so best used with a 120/100V step-down converter.”
“Roland MC-202 with Analogue Solutions Mod and Break Out Box – Analog Monophonic Synthesizer and Sequencer — In great condition! Fully functional! Looks Good!
“Highly sought-after and nearly immaculate original-owner vintage Roland TB-303 Bass Line synthesizer! All functions are operating correctly, a few keys can be slightly sticky at times, but do work well. This has been in my smoke-free possession since purchased new, and kept in a protective case. Includes the original quick reference card as well as the full operation manual. Also includes the original Boss 9V power supply. Battery compartment is very clean.”
“Roland SH-101 analog synthesizer in red.
“Used untested has scuff marks. Bender tab is broken, but still can be used. Will come with a Pro-Tec soft case. Sold As-Is!”
“The Roland D-50 is a polyphonic 61-key synthesizer produced by Roland and released in 1987. Its features include Linear Arithmetic synthesis, on-board effects, a joystick for data manipulation, and an analogue synthesis-styled layout design.”
” Vintage drum machine originally sold in Adelaide South Australia. Bearly used in excellent working condition. Few blemishes, sticker from music store which originally sold this analog machine back in the 70’s. ” 
“Roland CompuRhythm CR-5000 Drum Machine
“Used fully working Roland JX-8P and PG-800 programmer. All keys buttons sliders knobs and controls are working. Includes power cable and programmer cable.”
“All of the pedals were into a warehouse, never used. I just opened them to test the pedals. Are working fine, and looks in great shape. Pedals are not in perfect shape since they were in the ware house for a really long time, but the pedals looks in really good shape since they were never used (i just opened the boxes to test them).”
“For sale is a Korg EPS-1 variable touch sensitive polyphonic analog synthesizer. It’s works great! It takes a few minutes to warm up.
“Used Korg MS2000r rack mount synthesizer in very good working condition. All knobs are intact and original, all buttons function perfectly. Audio and MIDI work perfectly.
“I had to rebuild one side with a new piece of wood. It looks ok, and is very sturdy solid piece
“Great piece of equipment, has just been sitting sadly. Need to let it go.” 
“I have a Korg polysix here that is for parts or repair. All of the control buttons and knobs work. However I can only get one key to work if that. I’m assuming it’s from all the dirt and dust that has gotten in it over the years. It does power on” 
“First introduced in 1982, the Yamaha CS01 has been recognised by today’s electronic musicians as a very creditable synthesiser. It can run on batteries or 12volt power supply (not supplied with this offer). In excellent working condition with just a few minor blemishes on the casing.” 
“Yamaha TX816. sat in a home studio for years.” 
“Selling a Yamaha DX11 in cosmetically very good condition. All keys, sliders, wheels, and aftertouch work. There is, however, a bugginess where some of the higher patches selected will go into a function or edit mode instead of straight to the patch. The workaround, I have discovered, is to press the “internal” button right after, to actually go to those patches. This occurs when choosing Bank B as well, and is remedied the same way. My guess for the permanent fix is to upgrade the firmware EPROM chip.
“Up for auction is one Yamaha TX81Z, vintage FM synthesizer from the 80s. Can do some things similar to a DX7, has the Lately Bass. Thank you!”
“This Yamaha DX7 was quoted by Randy Waldman as the first one brought into the states from Japan way back when! This is his unit! It does have a low serial number! (13212) This DX7 was modded with a knob to switch to four banks! Also includes a Data Cartridge filled with more sounds! Pick new bank press a preset and you are playing a new sound!
“Yamaha CS10 – This synth has a lot of bite to it. Great for synth bass sounds, and house music. Includes original owners manual.” 
” A Vintage Yamaha FB-01 FM Sound Generator, circa 1987. Working condition, and unit itself is in nice condition, box-stored for much of its life. In original box and packaging, with original power supply and manual. Original owner closing down studio.”
“Yamaha DX100. Hasn’t been used in a long time, so it is being sold as is. It does not have a battery or cords.”
“For sale we have a vintage sound module the Yamaha TG77. The unit has some imperfections consistent with age and normal use but performs musically as it should. The back light is out but did not impact me during use.”