SKU: 2371869695

Korg Polysix w/ Kiwisix MIDI

Sale price$1619.99 Regular price$1799.99
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Description

Korg Polysix w/ Kiwisix MIDIKorg Polysix with Kiwisix MIDI retrofit vintage polyphonic synthesizer for sale. We paid our tech for the 15 hours of skilled labor required to meticulously service and upgrade this Polysix the right way, without cutting corners like most other sellers do making it more valuable than lesser examples you may find. We are professional perfectionists with decades of experience and an exceptional level of customer satisfaction, so you'll get what you pay

Korg Polysix with Kiwisix MIDI retrofit vintage polyphonic synthesizer for sale.

We paid our tech for the 15 hours of skilled labor required to meticulously service and upgrade this Polysix the right way, without cutting corners like most other sellers do / making it more valuable than lesser examples you may find. We are professional perfectionists with decades of experience and an exceptional level of customer satisfaction, so you'll get what you pay for.

In addition to the cost of this item plus its proper restoration, we invested around $500 in 2 important upgrades - 1. a Kiwisix MIDI retrofit (which adds excellent MIDI control other retrofits don't offer that takes this synth to a whole other level), and 2. a new Kiwi power supply board that'll hopefully extend this unit's life way beyond that of others you may find that don't have this new power supply. 

In addition to any repairs, we performed the following work to make this instrument work like new again:

Tact switches were replaced so buttons work flawlessly.
All pots and switches were cleaned and lubed. 
Unit was cleaned inside and out.
Key contacts were cleaned.
Oscillators were recalibrated.
Filters were recalibrated.
Multiple systematic burn-in tests were performed to ensure full functionality and reliability.
All tests passed, and now this unit is ready for its next happy home! It will of course be packed to withstand abuse so it arrives intact, which is sadly not the norm these days!

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This is a great sounding polyphonic analog synth keyboard. It's one of our favorite sounding synths. It's got memory for you to store your sounds, lots of knobs, a built in arpeggiator and a unique sounding effects section with chorus/phaser/ensemble effects. The sound is extremely warm, thanks to this effects section and the SSM chips inside. The unison and 1 finger chord sections are great as well. We think it sounds a lot warmer and interesting than a lot of other popular vintage synths, particularly the Roland Juno-106 which is similar in some ways but offers fewer features.

Here's one of our restored polysixes:





https://www.instagram.com/p/CSXEu5TntPS/

https://www.instagram.com/p/CSM72yygJFr/

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 2371869695

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Scraps
Port Orchard, US
★★★★★ 4
Good at price
Size: 9 Wide, Color: Sand
Fit a little small at my big toe but otherwise fit well. Heel rubbed slightly first 5 hour wear but no blister.
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Reviewed in the United States on May 9, 2026
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Lynn
Lake Worth, US
★★★★★ 5
Lightweight comfortable at a good price!
Size: 10.5, Color: Navy
These shoes are perfect. The color matches my navy outfits as well as my denim. They are comfortable and they look great. They are easy to pack lightweight and a great value. I am extremely satisfied and highly recommend!
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Reviewed in the United States on June 3, 2026
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PHOEBES
Dallas, US
★★★★★ 3
REALLY CUTE SHOE BUT CUT WAY TOO SMALL!
Size: 8, Color: Black Patent
I received the black patent leather shoes today and they are so cute! Sadly I need to return them because they are cut way too small. I normally wear a 7.5 or 8 on dress shoes so I ordered the 8. They are so tight across the top that it's uncomfortable as soon as I put them on. They are smaller than a normal size 8 dress shoe. The big toe area is extremely uncomfortable because it doesn't allow any room for it at all, so my big toe just presses against the side and end of the shoe without even walking in them. I have very narrow feet and these still are too small for me. So I am returning them and I already ordered a 8.5 W and hope that will fit much better. The patent leather is very cute and adds just enough dressy that I can wear them with slacks or my Capri jeans. I like the slip on and the cushion foot bed because it feels soft.
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Reviewed in the United States on May 26, 2026
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Amazon Customer
Phoenix, US
★★★★★ 5
Love these flats!
Size: 9 Wide, Color: Black White Faux Snake Skin, Size: 9 Wide, Color: Black White Faux Snake Skin
One of my favorite pair of flats! I’ve had these for several years and they are still comfortable, in good shape and really add a little spice to my outfits. I can wear these all day and not have any foot pain or discomfort as a result. The quality is good, fit is perfect and I tend to have difficulty with shoes due to bunions. Love these!!
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Reviewed in the United States on May 23, 2026
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lunaposas
Lexington, US
★★★★★ 5
LOVE LOVE.
Size: 7.5 Wide, Color: Beige
I love these shoes so much I had to write a review. So comfortable. Cushioned. Fits perfectly especially if you are more on the wide side. They are soft. Flexible. Easy slip ons you can walk around in all day. I want to try more colors.
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Reviewed in the United States on June 4, 2026

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