Korg PolySix Synthesizer Replacement Solid Walnut Chassis / Body / Case

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I built a beautiful replacement chassis for my Korg Polysix. Now I'd like to build one for you.
The sides and front rail are crafted out of solid walnut which is quite expensive.  The bottom panel is made out of quality maple plywood (no particle board or utility grade plywood here).  

Other than the internal battery that would often leak and destroy a Polysix, a common complaint of owners was the cheap particle board body that banged up and crumbled easily.   Likely, yours is suffering that problem. Then maybe this is just what you need to make your rare Polysix look better than factory new.   Not only will this upgrade increase your pride in your great sounding analog synth, but it will also increase it's resale value.

RF shielding will be installed in the same size and area as it currently is in your original Polysix case.  The bottom is hand-rollered jet black. Furniture nut inserts come pre-installed. All you have to do is transfer your existing keyboard, circuit boards, bender unit, power supply, rubber feet and use your existing screws. I'll include a sheet of all the metric screw sizes in case you are missing a few and need to pick some up from the hardware store.

Instead of staples and glue, I chose to attach the finished end caps with wood screws from the inside. That way if you should ever bang one up, likely you could get a hold of me, and I can make you a new end cap vs. needing a whole new chassis.


Just transferred the electronics to the chassis that you built and I must say this piece is a work of art. Everything fit perfectly and It looks like it should have back in 1980. It is well worth the money. Taking my time it took me about an hour. I took some photos before I disassembled for reference and I didn't even need them because everything fit like the original. Your effort is 100 percent better than Korg's laminated press wood board and looks to match. Thanks, D.H

Great job on the case! I'm a happy customer and my PolySix will be happy too!!! - F.W.

I've also made hardwood end panels for the Kawai SX-240 and chassis for the Korg Mono/Poly and here are some testimonials on those:  

"It arrived safely and I appreciate having my Mono/Poly looking like an 11/10 better than it did from the factory."- M.N

Just got the appropriate hardware to get everything back into place and put it together. They came out great! Thanks. I took a couple pics I will send them later. So happy. Thank you!"  - M.B.

"Wood Side panels for Kawai SX240 EXACTLY as described, packed well, Quick Ship!" - R.P.

These are custom made and should be able to build yours and ship within 10 days of purchase, so no long waits for these!

Local pickup is fine in the Chicago burbs and if you pick up, I'll delete the shipping charge.  

**I hate to state the obvious, but this auction is for a replacement custom made wooden body only.   This auction is not for a synthesizer, just a Polysix chassis.   **This is a custom order item. Upon purchase, I will start work on it and and have it shipped within 10 days. I am not responsible for any damage you do to your synthesizer.  

Product Specs

Brand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
Brand Korg
Model PolySix
Finish Dark Walnut
Categories Keyboard Parts
Made In United States

Accepted Payment Methods

Shipping Policy

Available for local pickup from Streamwood, IL, United States

Ships from Streamwood, IL, United States to:

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I will ship with tracking to the listed regions. To negotiate shipping rates to other locations, please send me a message.

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Return Policy

Return Window

This product can be returned within 14 days of receipt.

General Terms

Items must be returned in original, as-shipped condition with all original packaging and no signs of use. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.


Buyer receives a full refund in their original payment method less any shipping costs.

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Synths & Stuff

Streamwood, IL, United States
Joined: Mar 2018

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