MATRIXSYNTH: Kurzweil K250 SN 10004404 with New Display & Rare RAM Cartridge

Saturday, February 20, 2016

Kurzweil K250 SN 10004404 with New Display & Rare RAM Cartridge

via this auction

"Up for auction a Kurzweil K250 synthesizer in fully working, fully RESTORED condition. it looks awesome, works the same. All 12 voices are incredible.


K250 has an unique full weight wood keyboard which is built on the same way as a piano with balance-beams. It was cleaned with the passion, every wooden key was checked, adjusted and lubricant was added to the mechanics. It fills like new when you play it with right action and the response.


Keyboard is running OS6.2 (latest OS6) and has all motherboard sockets populated with sound banks. These are Soundblocks A, B,C, D.

It has SUPERRAM-II option installed, (extremely RARE) which 4x increases the capacity of original CGP Digitizer. It's fully checked for the operation and very easy to use.

Also hard to believe but the RAM Cartridge, which is another RARE option, is included too.

It also has QLS interface installed, and QLS -to- Macintosh cable is included. I can make an Apple Macintosh with the programs and sound sets for K250 if required.

Front panel has all sliders cleaned up and the LCD display was replaced to VFD one. it looks nice and bright. I'm also including blue color filter, but understand you may not like a blue color, so it's not mounted. It comes with 3M adhesive, easy install in 1 sec. See the pic, it's awesome look.

Power Supply was also cleaned. It's a second revision, runs stable.

Finally, a set of K250 DEBUG chips are included too. That's for the future needs and hope you never need it.

Other details:

K250 comes with the ORIGINAL shipping box which has a palette directly attached(yes, it's fun box). It was stored in the box most of its life and has minimal wear. This also means that I can ship it anywhere without additional packaging. But the shipment will come in two packages anyways, - huge box on palette with K250 and Power supply (incl. manuals) in another separate box.

You'll receive:

1. Kurzweil K250 with Soundblocks A-D, SuperRamII in the original box

2. RAM Cartridge

3. Power Supply (combined with foot pedals)

4. Many Manuals and some spare parts such as original LCD.

5. QLS cable to connect it to a Macintosh"

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