Korg Poly 800

“Vintage Korg Poly 800 Mk1 Analogue Polysynth, PSU, & Original Data Cassette.

A great sounding early eighties original polysynth with six voices. Great condition.

This one is unmolested. There are a few well known DIY modifications possible if you’re any good with a soldering iron and a drill. I’ve preferred to leave mine unscathed.

Only one thing to be aware of: Pitch/Mod joystick only works in the Y (modulation) direction and does nothing when moved in the X (pitch) direction. This has never been an issue for me in the years I’ve had it as I’ve always controlled it remotely over MIDI.”
Click here to visit listing on eBay

Korg Poly 800

“Collectors item! There are plenty of these on the market but rarely do they come up in such superb condition.

Apart from a barely noticeable hairline scratch on the corner and a tiny nick in the joystick plate, also hard to spot, the keyboard is in really mint condition throughout. Please see extensive photos.

There is no wear around the volume knob or other controls, the display is mint, the plastics are possibly the cleanest and best condition you will find anywhere, both front and rear.

Comes with original power adapter, patches cassette tape, and the all important preload program list which includes patch data. Also this is in its original box!.”
Click here to visit listing on eBay

Korg Poly 800

“It was working till a week ago. Then the buttons became somewhat unresponsive. I’ve opened it to replace the battery and when it came on since. It now shows no life with either batteries or psu. Sold for spares/faulty – no turns.

Here are the details:

Modded Korg Poly 800 Analogue Vintage Synthesizer.

PSU is not included.


Filter cutoff & resonance knobs
Sysex chip for enabling sysex updates through midi
Internal battery for memory” Click here to visit listing on eBay

Korg Poly 800

“Korg Poly-800 Polyphonic Analog Synthesizer Beautiful condition With Stand & Power supply and batteries.
I bought this from a person a few years ago who swore it was essentially unused since the late 1980’s. I needed it to record two songs and now I have no use for it. It has been kept in a case but I am not including it in the listing since it is made from heavy wood. I bought an ironing board style stand for it and I am including it as well” Click here to visit listing on eBay

Korg Poly 800II

“Based on the condition, might have played just to test long time ago then stored after. Looks like new. Only 2 small dent on the back.

A rare chance to own a barely used piece of synth history! In the original box, original manual, power supply and data tape. Replaced the internal battery and reloaded the factory data. It looks and plays wonderfully. Battery compartment is clean. Thank you for looking!

Fully tested and works like new! Includes everything in the picture. It will be double box. ”
Click here to visit listing on eBay

Korg Poly 800

“Korg Poly800 Vintage Analogue 8 Voice poly synth with Atomahawk capabilities.
I’m flogging this as there are a couple of issues but this is totally useable and still sounds
amazing so please read on.
Sound engine and all keys function as they should. The only issues are as follows;

1. When using the LFO stick on the left of the synth, it doesn’t physically stick but the LFO stays activated.
This has never been a problem for me as I don’t use it.

2. The ON/Volume knob is a bit iffy. Once you’ve switched it off, you’ll need a few attempts at switching
it back on. I just leave it up permanently and use the mains to switch on all my gear anyway, so again,
has never been an actual problem for me.

3.Now, this synth has the Atomahawk upgrade but I wanted to just use it in its original state so I
disconnected the unit inside the synth so that I could use the original parameters. This worked but a few
of the parameters numbers don’t correspond to the parameters board located on the top right of the synth.
To get around this i have put some sticky labels to remind me what numbers to punch in to change the
settings.” Click here to visit listing on eBay

Korg Poly-800II Project Machine

“KORG POLY-800 Electronic Synthesizer Poly 800 Analog Synthesizer.

Please read and be advised!

KORG POLY-800 Electronic Synthesizer Poly 800 Analog Synthesizer

Doesn’t work, turns on but no sound.

What you see is what you get.

Comes with a power cord! But it is not the original power cord. Only turns on with 6 C batteries. Turns on but no sound!” Click here to visit listing on eBay

Korg Poly 800

“Here’s a 1980s Korg Poly-800 polyphonic synthesizer in good playing condition. This machine is a little funky to program but once you get the hang of it you’ll find that it’s loaded with a wide variety of lush and dynamic tones, and the design is nice and compact and well made. Very cool! Sure to make a great addition to your studio or live setup. Some normal cosmetic signs of use throughout (see photos), but this one is in very good shape overall.” Click here to visit listing on eBay

Korg Poly 800 Project Machine

“Up for sale is a Korg Poly 800 from the early 80s. It works but has a few issues, at some point, someone removed the write “program enable/disable” switch from the rear of the unit

and moved it to the top of the unit in the form of a mini toggle. It still works to save patches, but has to be massaged just right. All the original patches have been wiped clean, so every available patch (save a few that I’ve programmed) will need to be created to your liking and saved. There is also an added RCA plug and knob control (don’t seem to affect anything). All the keys, modulation stick (awesome) and editing functions, adjustment controls seem to work fine. I have not tried any sequencing or MIDI. Basically, this synth works but is not quite in fully working factory condition. It may need repair to fully perform as intended and is being sold as-is as a project, or for parts. There are fresh batteries installed so all patches created have the ability to be saved. Thanks for looking!” Click here to visit listing on eBay

Korg Poly 800 with Moog Slayer Mod

“This listing is for a Nice Used Korg Poly 800 w/Moog Slayer MOD :

Upgraded Blue Display

Brand New Internal Battery installed (good for years), also has a Battery Holder, so internal battery is User Installable.

Generic AC Adapter Included with voltage range from 100-240v

Inputs/Outputs Have Been Cleaned

Unit Works Great” Click here to visit listing on eBay

Korg Poly 800

“We are a Electronics Donation Center. This item was donated to us. It has not been tested. We are selling it “AS IS”. Again, this item is being sold AS IS with NO RETURNS”. You only get what you see in the pictures no power cord, cables, accessories or adapter is included unless in the pictures or mentioned in the description.” Click here to visit listing on eBay

Korg Poly-800 with Mod

“Korg Vintage Synth – Poly 800 with MOD

Reluctant sale, downsizing studio. Bargain

At a time when Roland was doing well with their Juno-series, KORG countered with a poly-synth of their own in 1983 with the Poly-800. The Poly-800 was comparable to the Juno-106.

Classic 80’s vintage synth from smoke free dry studio.

Modded with cut off filter. ” Click here to visit listing on eBay

Korg Poly 800

“The top of the modulation stick is missing but still functions perfectly. I have a power supply but its fairly temperamental.

Selling because I’m moving away for studies.

Please check my other listings, some great bits available for below market price.”

Click here to visit listing on eBay

Korg Poly-800 with Reversed Keys Project Machine

“Korg Poly-800 Vintage Polyphonic Synthesizer, rare reverse keys model. This synth powers up but does not make much noise. The internal battery compartment/lid is missing as the batteries leaked and destroyed them. It is supplied in a home made flight case which needs some TLC, the foam smells like it’s breaking down and needs replacing. Definitely a project for someone who knows how to repair old kit. Also I believe it’s the model without a PCB mounted memory battery so will need modding. Please note this is not a usable synth as it is!” Click here to visit listing on eBay

Korg Poly 800 Project Machine

“Was gifted this from my Grandparents as it had been sitting in their loft for 20 odd years, condition is faulty, some patches work but some do seem to have an issue, not sure if it’s the LFO or if it just needs the patches reloaded tbh, but either way it’s something I just haven’t used enough! ” Click here to visit listing on eBay

Korg Poly 800 with Reversed Keys

“Korg Poly 800 mark 1 with inverted colour keys.

This is a paraphonic hybrid synth with digital oscillators through a single NJM2069 analogue filter and vca.
Built in sequencer and chorus effect.

I has quite a few marks and scratches on it – please see images.

Everything working as it should though.

Joystick knob is not original.

Will be shipped insured and tracked, and well packed.” Click here to visit listing on eBay

Korg Poly 800

” Used, but in good condition Korg Poly 800 Analog Synthesizer.Functions well. Scuffs and scratches on some keys and plastic. Shows normal signs of wear. Can operate with batteries (not included) OR 9 volt power adapter(not included).No built-in speakers. Must be used with headphones or amplifier. Has a rare worn O Masuko sticker and DR SOUND NY taped to side.1983 – 1987. Do not know if any Mitsubishi affiliation or just rare coincidence. Ask all questions and view all photos before buying. Thank you.” Click here to visit listing on eBay