Korg Poly-800

“Used vintage synth in good fully working condition.

A classic now, can be heard in use with many contemporary producers, a bit of a sleeper synth.
Easy to program, amazing musical possibilities.
Has the most recent EPROM / Firmware version factory installed.
Needs a 9V DC Centre pin negative power supply to operate, battery compartment not tested looks like it may have had a leak at some point.
Check Photo’s for condition.” Click here to visit listing on eBay

Korg Poly 800II

“Korg Poly 800 II, Korg Poly 800 mkII. I need to make room for another Synth. The internal battery has been updated with a new battery. The Keyboard bed has been cleaned and the interior circuitry has been cleaned. Factory presets have been restored VIA tape upload function. All features have been tested and confirmed to be working properly. The item is in very good cosmetic condition, with one small scratch on the top back. I am including the keyboard stand, a power supply, and a reprinted manual. This has been a studio only instrument, no gig use.” Click here to visit listing on eBay

Korg Poly-800

“Here is a great Korg Poly-800 Vintage Analog Portable Synthesiser. This is from the 1980s, has 49 Keys Works Perfect. I recently had it looked over by McCallister Audio in Champaign/Urbana. They provided a wall wart, switched out some jacks and he fixed a grounding issue. All presets work and can be saved. This is one I really wanted to keep, but alas, it is just too much for me. Take a look, this is super cool. So, you can say it has recently been serviced and checks out 100%. ” Click here to visit listing on eBay

Korg Poly 800

“You are bidding on a Korg Poly-800. This is a classic analog synth from the 80’s. I am the original owner. I bought it brand new back in 1985, and it has always been kept in a dry, smoke-free environment. All the keys still have their original spring action and work perfectly. The joystick and all the buttons work perfectly as well, and the display is nice and bright with no faulty segments.

Cosmetically, the synth is in great shape for its age. There are some minor scuffs and scrapes, the worst of them being along the rear of the unit. The only other cosmetic blemish of note would be the bezel surrounding the joystick. At one point, the adhesive lifted and the bezel got snagged causing it to crack (see photos). I have taped it back down with some double sided tape, but it is starting to lift back up. It should probably be glued down, but I’ll leave that to the new owner.

I am including the original Korg power adapter, the original cassette tape with all the default sound files, and the original instruction manual.” Click here to visit listing on eBay

Korg Poly 800II with Moog Slayer Mod

“Korg Poly-800 mkII with “moog slayer mod” which apparently means someone installed a cutoff and resonance knob at their expense on top (and killed the pitch bend in the process). Not a big deal to me because I never needed a “pitch bend”, but it only seems to work for up/down mod, not pitch bend, maybe I’m doing something wrong. Everything seems to work fine otherwise, although the power cable is a little wonky if you move it around and a small scratch near the LED. I just bought this but sadly I can’t get it to work with my midi adapter to use a librarian. I have enough other synths to keep me busy” 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

Korg Poly 800 with Moog Slayer Mod

“This keyboard has been modified with both the ‘Moog-Slayer’ and ‘FM’ filter modifications*, providing real time patch performance capability that it previously lacked.

I am the original owner and this synth has not been abused. It is in perfect working condition with all control surfaces functioning normally, and there is no corrosion in the battery compartment. Always kept in a smoke free environment.

Included are all accessories pictured:

Korg Poly-800 synthesizer
Custom fit hard case
Single mono audio cord
MIDI cables
Power supply
Manual
Factory sound parameter sheet
Factory programmer cassette”
Click here to visit listing on eBay

Korg Poly 800

“Up for sale is a Korg Poly 800 with full Atomahawk upgrade in great condition technically and cosmetically.

The upgrade gives 84 additional parameters which transform this already beautiful synth into a wild sound design machine while still providing you with the original parameters.

Additional parameters include frequency modulation, super lfo, aggressive resonance settings and lots of really interesting additional waveforms and modulation routing options.

Also there is no need to replace the battery for patch storage as the upgrade takes care of all of that.

One minor issue is that the dco mod stick can stick periodically. I never use this so has never been a problem.

Comes with power supply.

This is overall a really good example of a poly 800.” Click here to visit listing on eBay

Korg Poly 800

“You are bidding on a Korg Poly-800. This is a classic analog synth from the 80’s. I am the original owner. I bought it brand new back in 1985, and it has always been kept in a dry, smoke-free environment. All the keys still have their original spring action and work perfectly. The joystick and all the buttons work perfectly as well, and the display is nice and bright with no faulty segments.

Cosmetically, the synth is in great shape for its age. There are some minor scuffs and scrapes, the worst of them being along the rear of the unit. The only other cosmetic blemish of note would be the bezel surrounding the joystick. At one point, the adhesive lifted and the bezel got snagged causing it to crack (see photos). I have taped it back down with some double sided tape, but it is starting to lift back up. It should probably be glued down, but I’ll leave that to the new owner.

I am including the original Korg power adapter and the original casette tape with all the default sound files.”

Click here to visit listing on eBay

Korg Poly 800

“Vintage KORG POLY-800 Polyphonic Synthesizer w/AC Adapter, Owner’s Manual, Stand & Cassette.

8 separately articulated voices
8 digital controlled oscillators
9 advanced 6-stage digital envelope generators
Double playing mode
64 different programs
Stereo chorus
Built-in polyphonic sequencer stores and performes up to 256 notes
Musical instrument digital interface (MIDI)
Digital access control
Chord memory
14 second tape interface
Noise generator
29 white keys and 20 black keys
Lightweight (10 lb) battery/AC operated
Serial No. 033874
By Keio Electronic Laboratory Corp., Tokyo, Japan

Comes with Quik Lok (Cam Recanati) stand, Owner’s Manual, 9 VAC adapter and preloaded sound data cassette. Previous owner printed out program names with information. ” Click here to visit listing on eBay

Korg Poly 800

“The unit has been thoroughly tested and is in excellent pre-owned condition as photographed. This is an earlier version and is ready to be played or modified/upgraded. No condition issues to note, this is a pristine example of this vintage synth in it’s original tour hard case which is also flawless. Made in Japan.” Click here to visit listing on eBay

Korg Poly-800

” Very good condition for its age, everything works, all keys are in good working order, all connections on the back are perfect working condition. The numeric buttons do double click sometimes but its not too bad if you use a light touch, perhaps would benefit from being cleaned somehow.

One small pin hole on the top left corner of the synth; which fortunately is where most people put the filter cut-off knob for the slayer mod.

This synth is un-modded, and includes 6 batteries which are essential to keep the patches loaded. Ideally somebody should add the battery mod and Moog Slayer mod for filter cut-off.” Click here to visit listing on eBay

Korg Poly 800

“Here’s a piece of history – a Korg Poly-800 in full working condition with original power supply, user manual plus it come in the original box. It’s even comes with strap buttons, so if you really want to, you can play it while moving around – if you really, really want to!! Cosmetically the unit is in great condition for its age.” Click here to visit listing on eBay

Korg Poly 800

“Up for sale is my Korg Poly 800. I believe this to be a very early production model because when I installed the internal CR2032 bettery, there wasnt even a symbol on the circuit board designating where its supposed to go. Other early models had the schematic symbol for the barrery, but no battery. Then later, they came with a battery.

Anyway when I got this it barely made any sound. I retrofitted a CR2032 lithium ion battery(still correct for this synth),did a factory reset and now it works great. There is a chip taken out of 1 key but it is cosmetic only. Also one of the black keys is less sensitive than the other keys but still plays just fine. Also at some point, someone stenciled the name “Johnny Hott” on the back. I found it too hilarious to dare remove it.” Click here to visit listing on eBay

Korg Poly-800II

“Korg Poly 800 II synthesiser. Condition is “For parts or not working”.
Listed for parts or not working
has 1 issue the EQ parameter does not work
otherwise ok
some age related wear ,a new 9v adapter will be included.
you can try out but please observe covid distancing and please bring your own headphones inc 1/4 inch jack”

Korg Poly 800 with Reversed Keys

“Works perfectly and sounds great
The number keys that are used to select the patch numbers can be a bit sensitive.
Sometimes you’ll press a key and it registers as two presses if you don’t take your finger off in time.
Maybe the keypad needs a clean. It hasn’t bothered me at all.
This is the version with the inverted keys.
No modifications, you still need the D type batteries to run the patch memory.

Cool synth, I just don’t use it very much.” Click here to visit listing on eBay

Korg Poly 800II

“You’re looking at a vintage Korg Poly 800 II keyboard. I’ve had this keyboard for a long time, I used to be a collector.

The keyboard is in good cosmetic condition, it turns on and works, you can bend pitch, tune it, lots to play with, it sounds amazing but one key does not play, it’s the 7th white from the right. I’m not sure what’s up, probably a loose wire, I thought it was worth noting. I love this thing, sad to sell it.

It is powered by a DC9v but that is not included, synth only. ” Click here to visit listing on eBay

Korg Poly 800

“Korg Poly 800 Synthesizer. Condition is “Used”. Purchased new by seller in 1980s.

NOTE: This synth has a battery that is soldiered into motherboard that is no longer charged and must be replaced for full, original functioning.
Two broken white keys have been replaced many years ago. No other problems. Synth Includes all original paperwork; the never-used reprogramming cassette tape; and Roland AC/DC 9 volt output power supply.

Great synth that was used to help me learn to play songs and many guitar solos by programming passages into the sequencer, varying playback speed, and practicing along with synth. Never used at gigs or on stage.

In the current condition, synth will produce sounds, but it needs the motherboard battery replaced to get all features working and produce proper tones. Battery compartment for the six C-type batteries used for playing without power supply contains no batteries.” Click here to visit listing on eBay

Korg Poly 800 with Reversed Keys

“This Poly-800 has been been given a thorough checkup by our techs here at Mike & Mike’s Guitar Bar, with all contacts, switches, and sliders cleaned, and all functions working as intended. Cosmetic wear is limited to a few minor marks on the edges of the enclosure. The graphics are pristine and all of the original white slider tips are intact.

The original faux leather fitted zippered carry case is included.” Click here to visit listing on eBay

Korg Poly 800

” Vintage Korg Poly 800 Keyboard Synthesizer – Good Condition. Condition is “Used”. Shipped with USPS Priority Mail. Does not include AC adapter but works great with D batteries. Has barely-noticeable magic marker on back (see pic).” Click here to visit listing on eBay

Korg Poly 800

“Unit has the regular signs of wear and tear as highlighted in the photos. The joystick’s top little nub is missing, but that doesn’t affect functionality. Guitar strap knobs will be included in packaging.

NOTE that this unit does not “remember” patch settings for longer than a few hours. I chalk this up just to its age – the battery pack in the back of the unit is supposed to power the system memory, but it doesn’t. I leave that up to someone more dedicated than me to fix. The unit is definitely a little fussy, as anything this age would be – I’ve had to open it up and blow it out several times in order to get consistent audio output. Pots are clean as a whistle, though. Sequencer is strong, MIDI functionality is great, and you can get some serious bass lines out of this instrument. I’m selling it to upgrade to other gear in my studio.” Click here to visit listing on eBay

Korg Poly 800II

“KORG POLY-800 MK2 Analog Synthesizer w/ Soft Case AMAZING SHAPE!

The synthesizer is in amazing condition for its age and functions 100%

This is 100% pure analog and the MK2 version updated it to have delay which is a huge option upgrade. Analog delay is a must!

Go to YouTube I just put a video up of it working search Korg poly 800 MK2” Click here to visit listing on eBay

Korg Poly 800 Project Machine

“For sale, a vintage Korg Poly 800 that will be sold as is for parts/not working. This Poly 800 doesn’t power on and most likely needs a new internal battery. Some additional repairs may be necessary as well. The synthesizer exhibits wear such as the tune slider cap being cracked but is in otherwise, good cosmetic shape. This is one of those synths that really deserves a tech to restore it to its original glory cause the Poly 800 is awesome! A true rival to the also famous Roland 106, the Poly 800 features a stereo chorus effect, chord memory, a simple built-in sequencer, three digital envelope generators (for the oscillators, the noise generator and the filter), and a funky joystick used to adjust the pitch, modulation and the filter.” Click here to visit listing on eBay

Korg Poly 800

“Used, but in good condition Korg Poly 800 Analog Synthesizer.Functions perfectly. Scuffs and scratches on some keys and plastic. Shows normal signs of wear.Manual included but no AC adapter. Can operate with batteries (not included).No built-in speakers. Must be used with headphones or amplifier.I tried unsuccessfully to remove tape indicating keys. Only purchase if you have a proven method of removing tape adhesive or it doesn’t bother you that it’s there to stay.Highest black key (A#) is not quite level. Brace/bracket was fabricated inside to raise key to almost level. You would barely notice unless you opened the synthesizer.” Click here to visit listing on eBay