Poly 800

“Condition is “used” scratches marks etc. In working order I installed the mods so synth has 12db/24db switchable filter and new front mounted knobs which control the cutoff and the resonance.” Click here to visit listing on eBay

“Please refer to pictures for exact item, untested, as is. Powers up, plug included.”
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“KORG POLY-800 Programmable Polyphonic Synthesizer Keyboard – Vintage 80s Synth – Classic//

*Includes power supply

Condition: Good overall, working nice tested. Ok/Good physical condition.

Internal Battery has been replaced pretty recently, within the last few years. ” Click here to visit listing on eBay

“I hooked up a power supply (not included) and the unit turns on. However, it does not make any sound when hooked to an amp or with headphones.

Missing the battery door. I did not have any C cells to test the battery compartment.”
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“Item is untested sold as is

For parts or repair” Click here to visit listing on eBay

“great condition. everything functions as far as i can tell. i have tested it and it sounds great. being sold as is. this is from the 80s so its not going to be perfect. comes with power supply and can include batteries if wanted. battery cover is missing.”
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“You are bidding on a Korg Poly-800 synthesizer for parts/project. This synthesizer was working, but had been partially disassembled to install some modifications (moog slayer,) which were not completed (only knobs/pots installed.) It has sit on a shelf for some years waiting to get the attention it deserved, but unfortunately I have not been able to find the time for it, and I must now regrettably let this awesome synth go. I hope it finds a new owner that can give it the attention it needs.

Please understand that this is a PROJECT synth that will require some work (or to be used for PARTS for another poly800 project.) With this in mind it is being sold as-is, so bid accordingly.” Click here to visit listing on eBay

“Korg poly 800 – switches on but sound crackles and is low in volume. sequencer doesn’t seem to be working either. ” Click here to visit listing on eBay

“Korg poly 800 synth for repair or parts.

One broken key but I have found a spare key that I must have bought for it ages ago! Please see photos.

I haven’t fired this up in decades but recall that there was a problem with the power supply and /or memory retention.

Please assume it doesn’t work. ” Click here to visit listing on eBay

“In fine working order.

Does not come with plug.” Click here to visit listing on eBay

“Classic 1980s Korg Poly 800 Synthesizer for sale. This is a great sounding eight-voice polyphonic synthesizer, with built in sequencer and midi capability. One owner from new and is in excellent full working condition, with original box, power pack, manual and sound library cassette.” Click here to visit listing on eBay

“Tested and works. Really nice cosmetic shape. Comes with original box, power cord,manual and programmable list. The manual and programmable booklets are in rough shape. You can use with batteries but they are not included. Will ship keyboard in the original box inside another box. For extra protection. ” Click here to visit listing on eBay

“I bought this back in the mid 80’s and used the heck out of it but it has been sitting around for a couple of decades in the attic and in a shed so it might be restored or used for parts Haven’t tried to power it up because I don’t want to damage it. Thanks for looking!” Click here to visit listing on eBay

“POLY-800Warranty period: 3 months Warranty Estimated shipping: 1-2 days later Registration date: April 25, 2024 Features/NotesThe B/W inverted keyboard is too cool…a hidden nice synth from 80’s KORG! DCO/VCF’s unique personality. It’s a nostalgic, warm song that can be called chiptune-like. It’s fun to create crisp sounds! This is a compact and hip machine.Features/NotesBattery has been replaced. Factory data restored.Features/NotesOnly the main body is sold. There are no accessories.” Click here to visit listing on eBay

“Excellent condition fully functional

Serviced by professional synth technician

All keys removed, mechanisms lubed and keys washed

Weak solder joints reflowed, all switches, sliders, pots etc cleaned

Modified to accept two Internal 3V coin batteries, rather than the C batteries on the back… wired in parallel, so voltage stays 3V but maximum Ah is increased — this is a significant upgrade because when replacing the batteries, you can change one at a time, so that you NEVER lose your patches when changing batteries unlike how it works with a stock Poly-800 with the C cells (which are connected in series, so when one battery is removed the ENTIRE patch bank is lost)

Comes with hybrid case, mono cable (for dumping patches to tape/flashing synth with patches), power cable, 2 midi cables, ORIGINAL PATCH BANK TAPE (note: the patch bank tape doesn’t seem to carry a strong enough signal to flash the synth with patches. However, when using the patch banks available on the internet, like on Youtube and Soundcloud there was no issue flashing the synth)” Click here to visit listing on eBay

“Offered is a Korg Poly 800 Keyboard Synthesizer made in Japan. Korg built the Poly 800 from about 1983 to 1987, so it’s from sometime then.
This 49-key synth is a great addition for musicians and producers who want to create unique sounds.
The instrument is sold with a Calzone Flight Case that ensures safe transportation. The case is covered in stickers. The case handle, latches, and hinges all work fine.
It comes with a non-original, but proper, power cord.
When plugged in and turns on, nothing happens. Nothing at all. I have done nothing to it. I did open it up. It appears to be unmolested and all there.
Thus, it is being sold as a non-working REPAIR PROJECT. ” Click here to visit listing on eBay

“This Korg Poly-800 II keyboard synthesizer is a vintage, limited, and rare item. It boasts 49 keys with a synth type, and comes with MIDI (DIN) In and Out input/output ports. This analog synthesizer has 3 pedal inputs and features an arpeggiator, built-in effects, display screen, flash memory, and mat. The Korg Poly-800 II is a must-have for any musician or synthesizer Get your hands on this rare Korg Poly-800 II synthesizer keyboard today!” Click here to visit listing on eBay

“KORG POLY-800 Analog Synthesizer 80s” Click here to visit listing on eBay

“Great example Korg poly800

Power supply included

Manual on usb stick

Been using for a couple of years always sound great in a mix” Click here to visit listing on eBay

“Great example Korg poly800

Power supply included

Manual on usb stick

Been using for a couple of years always sound great in a mix” Click here to visit listing on eBay

“This Korg Poly-800 keyboard synthesizer is a highly sought-after instrument for musicians and producers looking to add a unique and retro sound to their music. With 49 keys and a polyphonic design, this synthesizer is perfect for creating complex and layered sounds. The synth keys are designed for easy playing and can be customized to your liking.

This musical instrument is ideal for musicians interested in electronic music production. The KORG POLY-800 synthesizer is programmable and highly versatile, allowing you to craft a wide range of sounds for your music. It is a rare and valuable piece of equipment that will help you create unique and memorable tracks.” Click here to visit listing on eBay

“Junk Not Working KORG POLY-800 Programmable Polyphonic Synthesizer Keyboard

Junk, for Parts, Not Working. ” Click here to visit listing on eBay

“Korg Poly 800 Synthesizer Keyboard.

Does not Power Up with Batteries.

There is no Power Supply or way to check it out with that. It might be ok.

It is in great cosmetic condition.

Interior is clean and all parts and circuit boards and keys are intact.

Includes a Hard Road Case.

Sold AS-IS.” Click here to visit listing on eBay

” KORG POLY-800 Programmable Polyphonic Synthesizer (needs AC Adapter). Condition is Used. Shipped with USPS Ground Advantage. ” Click here to visit listing on eBay

“This is my beloved Korg Poly 800 – I bought it when it came out and it’s been with me since.

As a synth it works perfectly well, the only problem is that as I left the batteries in for too long they oxidised, and as a result part of the battery bay and part that connects from there to the circuit board has been eroded a bit by that. As a result of this and the internal battery also being depleted, the machine currently won’t hold settings/presets after being switched off.

I have tried to fix that, and in doing that I did manage to have it on just with the batteries (as you can see from one of the main picture in this listed, where it’s on while not connected to the mains) – but the fix I did was a bit flimsy and didn’t last long. I am sure that some capable hands can sort this out very easily – I am just not that technically/manually minded so not the best person to do that kind of soldering etc.

I uploaded the full set of presets using a soundfile that mimics the original Korg tape and while a bit hit and miss, it did work a couple of times, so that function also seems to work fine – it just won’t hold them unless it’s left on, or the battery thing is fixed.

I also developed a sound just to check that the various parameters work OK and they did – see the video included in the listing (apologies, as I had no time to hook it up to an amp the sound in the video comes from the headphones).

Other niggles:

– the top of the wheel is missing
– the chassis has a few marks here and there – see pictures
– a key is not working – circled in red in one of the pictures
– the bottom side of a key is slightly chipped – see pictures

Otherwise tin relatively good state considering its age – now just waiting for its next, second owner who will take care of it and bring it back to full functionality after it’s been with me for a large part of my life.” Click here to visit listing on eBay

“Item is in good condition, normal wear and tear. Could use a little cleaning. The tape on the front is very old and stuck on there.” Click here to visit listing on eBay

” KORG POLY-800 Programmable Polyphonic Synthesizer Keyboard Music Instruments” Click here to visit listing on eBay

“Korg Poly 800 – Programmable Polyphonic Synthesizer Keyboard Music Instruments
Used/Pre-Owned.
Good Condition.
The Listed Item may Have Normal Wear & Tear Damage. Scratches, Scuff, Or Small Imperfections cosmetically.
Please view the pictures for details of the condition.” Click here to visit listing on eBay

” This is a very rare and collectible Poly 800 in the limited edition reverse keys version, and it also comes with the original red Korg carry bag. Tested, working and in very good cosmetic condition for a 40 years old synth.Some sign of use on the top left corner and that’s pretty much all.The bag has a few marks visible if you look closely.The original power supply is included.It comes with a fresh set of batteries that also hold the memory, though it can easily be modded to an internal battery if you wish.The manual is widely available online, if you want I can mail you a PDF.It will be sent with a courier well packaged but uninsured to keep the cost down, if you prefer insured please contact me after the sale. You are welcome to pick it up from London SW2.” Click here to visit listing on eBay