Poly 800

“Very Rare Korg Poly 800 mk.1 Reverse Keys Version with a handmade wooden case.

Well looked after example, plays and sounds great. I couple of bits of slight discolouration on the plastic which is unsurprising on these.

I’ve had this one modded to have an internal battery fitted meaning there’s no need to use batteries for patch memory.

The wooden flight case has seen slightly better days but has done a super job of keeping this guy safe and sound.” Click here to visit listing on eBay

“*PRICED TO SELL-COMPARE LISTINGS AND SEE -BEST DEAL HERE OFFERING THE MOST FOR THE MONEY -ORIG LISTED FOR $700 -SPECIAL PACKAGE DEAL-Like new -1980s Korg Poly-800 polyphonic synthesizer in excellent playing condition. Perfect for the aficionado collector. Lightly used and never used outside of home use. Pricing reflects your opportunity to own a recently FULLY TESTED perfectly working 80s synth. This includes the ORIGINAL MANUAL as well as TWO cassette libraries of instrument sounds. The original tape has the preloaded sounds. And the second tape has an entire collection of ADDITIONAL sounds! The original power cord is included as well. I have not found another listing anywhere including all of these items in “good” to “near mint” condition sold as a set. This is a once in a lifetime opportunity!! ”
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“Korg Poly-800 Analog Synthesiser Synth EightVoice Polyphonic Instrument Keyboard.

Clean and fully working condition.

Complete with Korg Poly-800 Sound Data Cassette C-7 1980s – very rare. ”
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“Here’s my Korg poly 800 synth for sale. Had it more than 30 years, still works a treat. It’s mostly un-modded…..the only change I have made is to add a holder for the internal battery (that maintains the flash memory). For some reason when they were built this battery was soldered in…. very odd! Battery was replaced a couple of years ago.

The synth is mains powered….the original adapter is included….but can also be powered by 6 D type batteries if you need mobility.

Everything is in working order….the on/off/volume knob is a bit scratchy but there’s no dropping out. The joystick for pitch bend and modulation works fine, as do the midi in/out sockets and the tape in socket. I had to reset all the patches to their factory settings when I replaced the internal battery.” Click here to visit listing on eBay

“Submitted for your approval is the Korg Poly 800 with Filter/Res knobs and Moog Slayer mods. This unit has no internal battery case as the batteries were left and dissolved the connections. It is Sold AS IS and is in fully working condition, despite not being able to be played with batteries, the 9v boss sized charging unit works fine.” Click here to visit listing on eBay

“Barely used since I bought it about 10 years ago.

Patches are saving onto internal memory but no factory patches remain. No idea when or if the internal memory battery was replaced. Remember using the midi back in the day so pretty sure that works but haven’t tested the tape ports but nothing to suggest they don’t work.

End key is very slightly skewed but still works fine.

Seems to be a few screws missing from the back plate but its solid and you wouldn’t know without looking.

Recently bought power cord included.” Click here to visit listing on eBay

“Explore new sonic territories with the Korg Poly-800 Programmable Polyphonic Synthesizer Keyboard. This 49-key synth from Korg offers a wide range of creative possibilities for musicians and producers alike. With its distinctive 80s sound, the Poly-800 is a must-have for anyone looking to add vintage analog warmth to their music.

Featuring a variety of controls and parameters, the Poly-800 offers endless sound-shaping capabilities. Its versatile synth engine allows for the creation of everything from classic lead and bass sounds to atmospheric pads and effects. Whether you’re a seasoned synth enthusiast or just starting out, the Korg Poly-800 is a powerful tool for bringing your musical ideas to life.

Gently used. Comes in hard case (custom case, not Korg). Has original cassette tape, instruction manual, and power supply. Also comes with strap. ” Click here to visit listing on eBay

“For sale is a used vintage Korg Poly-800 Synthesizer.

Sold AS-IS for Parts/Not Working.

Cosmetically in Good overall condition (see pics)

Unit does not power on, Internal memory battery has failed and will need replacement.

Does not come with a power supply.” Click here to visit listing on eBay

“KORG POLY800 Synthesiser As Is, won’t turn on ”
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“For sale is a rare Vintage Poly-800 Korg Keyboard Synthesizer. Unit was tested, powered on without issue and I was able to load the sounds. Most everything seemed to function correctly. The number “3” button wouldn’t register a press, as well as one of the keys. Because of these issues, the item is being sold AS IS, FOR PARTS OR REPAIR, NO RETURNS. Pictures are of the actual item you will receive. ” Click here to visit listing on eBay

“Vintage 1983 Korg Poly-800. Powers up and makes Synthy sounds but it’s like something is stuck. Change program number and parameters and the sound changes slightly but won’t normalize. Joystick functions and seems to effect the note properly. Anyway, sold for repair or parts. There’s an internal watch battery soldered to the board that eventually dies and required replacing. At that time a reload of original presets is also required and can easily be found and executed with 1/8” audio from the internet.”
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“Vintage KORG POLY800 Synthesiser with original manual, power supply, headphones and leads. Seems to work ok but it was given to me and I have only used it as a keyboard so have not tested any other functions ” Click here to visit listing on eBay

“GOOD CONDITION FOR AGE
*TESTED WITH HEADPHONES / SPEAKER / WORKS GOOD / READY TO USE CONDITION!!*”
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“Excellent condition Korg Poly-800 Polyphonic Analog Synthesizer with original box. All in perfect working order.
Comes without power supply but runs on standard 9V adapter or batteries.” Click here to visit listing on eBay

“This has been in dry storage for many years. Condition is very good. Includes owner’s manual and tape.” Click here to visit listing on eBay

“A vintage KORG POLY 800 synthesiser in great working order.

This classic early 80s synth is extremely clean and tidy, everything works, and nothing is wobbly. There are no suspicious ‘burns’ on any of the keys.

There are the usual marks from forty years of use, and there is a tasteful replacement joystick knob.

Complete with alkaline C cells for testing! No other accesssories included.”
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“Korg Poly-800 Analog Synthesizer. 49 Key Keyboard. Great condition!

All functions work and item is in good cosmetic condition as well. Please see photos.

From wikipedia: ” Click here to visit listing on eBay

“Korg Poly-800 Analog Synthesizer With Original Papers & Cassette Casio Hard Case. Works great!” Click here to visit listing on eBay

“Korg Poly 800

Korg Poly-800 Analog Synthesizer. 49 Key Keyboard. Great condition!

All functions work and item is in good cosmetic condition as well. Please see photos.”
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“Korg Poly 800 Polyphonic Analog Synthesizer.

49 Key Keyboard, unweighted, 4-octave.

In working condition. I tested each key. All work fine.

Sounds great! (Requires separate amplifier. ) Joystick works (Pitch bending left right up down.)

I do not know how to test other functions. ” Click here to visit listing on eBay

“Made in Japan by Korg in the mid-1980s, it’s a Korg Poly-800 synthesizer. Korg made the Poly-800 from about 1983 to 1987. It’s polyphonic.
It’s in fine cosmetic condition. At some point, the batteries leaked in it. I cleaned up the battery acid on the inside. It did not stain anywhere except the battery compartment.
It does not work properly. It does power up and produces noises. But they are very unmusical noises.
Except for me cleaning it, it has not been worked on. I sincerely believe it is all original and complete.
It comes with a replacement power cord adapter. It comes with a torn vinyl gig bag without a handle, but with working zipper.
It is being sold as a non-working repair project. ” Click here to visit listing on eBay

“Korg Poly 800 synthesizer from 1983. Great condition for a 40 year old synth. As can be seen in the photos the DCO and Pitch Bend joystick top knob is missing, but the stick functions fully.

I have fitted a new internal button cell battery to prevent the loss of patches when powered off without the main D type batteries in place. This is one of two that I own and have brought back to life, but I’m going to be keeping the other one for my own synth collection.

Manuals are available online, as are a number of alternative user made patches. Patch files are in audio format and have traditionally been uploaded to the synth by tape. However, they can be transferred to the synth using free audio software such as Audacity and the appropriate audio file played into the Tape input by a 3.5mm jack lead.” Click here to visit listing on eBay

“KORG POLY 800 (modded)
Power Supply Included

Just found this old thing! Korg Poly 800 that I modded quite some time ago.
I have checked and the filter mod seems to be working fine (pot for both cutoff and resonance), the data entry mod appears to be only changing values down.
The other mod for input I’m not sure about. All keys are working as is the joystick.

As you can see the filter knobs have been placed over the old graphics for program numbers, and that whole area has been plastidipped (rubber spray that is easily removed) which has some damage (easy to redo)

This is definitely a small project for someone. There are some holes made under near the keys where the screws have gone through the plastic (wrong screws used whoops and pictured)”
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” Korg Poly 800. Excellent cosmetically. Operationally perfect. As good of condition as you will find these for they’re age.” Click here to visit listing on eBay

“This is a used Korg Poly-800 synthesizer keyboard. The keyboard turns on, but only a few of the preset sounds work and I am not sure these are the actual Korg programmed sounds so I am selling for parts only. All keys function properly, volume control, sliders, buttons and joy stick work. Power supply included.”
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“I inherited this and don’t play myself. He took meticulous care of his equipment. Has original box and appears to be in excellent working order. ”
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Korg Poly800 Synthesizer

Everything is in good working condition! Comes with the manual as well. ” Click here to visit listing on eBay

“1980s Korg Poly 800 Synthesizer 80s synth

Comes with original power supply. Works great, sounds great. Very underrated keyboard. There are mods that can make these even cooler than they already are for very little $$

Has some normal cosmetic wear, especially on the corners. Plastic color has faded and chalked out in some places. All keys and functions work well.”
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“I haven’t got a plug for it so cannot test. As you can see in the pictures it is a bit battered and there are some screws missing underneath. ”
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