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Description
Kurzweil K 250 RMX Vintage 80s Synthesiser Sequencer Sampler Version 4.1 - 240VKurzweil K 250 RMX Vintage 80s Synthesiser Sequencer Sampler Version 4. 1 240V A true piece of synth history right here! The Kurzweil K250 has a pretty special origin story: it began after Stevie Wonder challenged Raymond Kurzweil to create an instrument that could combine computer control with the expressive sound of real acoustic instruments. Wonder became a musical advisor to Kurzweil Music Systems, and early K250 prototypes were built for him in
Kurzweil K 250 RMX Vintage 80s Synthesiser Sequencer Sampler Version 4.1 - 240V
A true piece of synth history right here! The Kurzweil K250 has a pretty special origin story: it began after Stevie Wonder challenged Raymond Kurzweil to create an instrument that could combine computer control with the expressive sound of real acoustic instruments. Wonder became a musical advisor to Kurzweil Music Systems, and early K250 prototypes were built for him in 1983. Officially unveiled at the 1984 Summer NAMM show, the K250 became one of the landmark digital instruments of the decade, combining sampled acoustic sounds, synthesis, sequencing, and a fully weighted keyboard. The K250 RMX was released a few years later.
The Kurzweil K250 RMX is the rack mount version of the Kurzweil K250 system, released in the mid-1980s and documented by Kurzweil as an 8-space rack module. The K250 line was one of Kurzweil’s early flagship digital instruments, built around sampled sounds stored in ROM, including Kurzweil’s well-known acoustic instrument sounds. The K250 architecture supports 12-voice polyphony, MIDI operation, layered/multitimbral sound use, and onboard sequencing functions.
This unit is running OS version 4.1. It has the "SuperRAM II" and sampling digitiser card installed so it can be used as a sampler. It also has all four Sound Blocks, A, B C and D installed!
Condition:
- This unit has been used.
- This unit is in great condition overall. It shows some general wear from use and age like some marks, nicks and scratches. Please see photos for further details. Overall it is a nice vintage piece.
- This unit is housed in a custom built hard case that was manufactured in Australia. It features castors wheels and passthroughs for the audio line outs, midi out, computer cable out, and mains power IEC plug with switch.
- The screen does not have a back light.
- This Synth / Sampler unit has been serviced. We can confirm it is 100% functional. It has been thoroughly tested and has no faults to note.
- Please note the synth and sampler has been fully tested. However we were unable to test the computer cable / computer connection functions as we do not have a set-up for this. This is untested. It was made to be used with Macintosh computers of 1980s. This includes the 512k Macintosh or A Machintosh Plus.
- This unit comes with its original and what looks like very rare english owners manual. We could not find any copies online.
- This unit has been upgraded. It has the following:
- Superram II
- Sound Block A, B, C and D
- Please be aware this unit is 240V. It was made for use in Australia and New Zealand. It powers on with an IEC cable. This cable is not included in the sale.
- International buyers will need a step-up transformer to use this unit.
Pick up would be preferred and is free. You can pick up from West Gosford, NSW. 2250.
If you are in a remote area you will most likely incur extra fees before this unit can ship out. This is because the unit weighs around 30KG without packaging. Please contact us before purchase if you are unsure.
If you are in a remote area you will most likely incur extra fees before this unit can ship out. This is because the unit weighs around 30KG without packaging. Please contact us before purchase if you are unsure.
International import tax, duty, vat, custom fees or any other charges are not covered by us, nor included in the shipping fees. These are the responsibility of the buyer. International shipping will be very expensive. Please contact us for a direct quote.
Return Policy:
Returns will only be accepted for manufacture defects / faulty items. Please contact us if you have any problems with your purchase and we will strive to work it out with you.
Please note the synth has been fully tested. However we were unable to test the computer cable / computer connection functions as we do not have a set-up for this. This is untested. This has been noted twice in the listing. We cannot accept returns for this.
Please contact us with any enquiries, and check our other listings for more pro audio and accessories.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Loved them so much- Bought another pair
To start off, I have wide feet, ankles, and calves, because i'm a bit on the heavier side. Finding shoes that fit these requirements are difficult. The top part of the shoes that hug my legs are actually still a little roomy. Someone who has slightly larger lower legs can fit into these as well. If you have tiny legs, these shoes may be a little too loose, or if you don't have wide feet. These shoes are literally perfect for my feet and legs. The back unzips so I was able to get my feet into the shoes easily, and even wearing them I didn't feel like my toes were being squished. I ordered a size 10, and it is perfect length and width for my wide feet. Do note: My feet are wide enough to not fit in most shoes, but not too wide, you should pay attention to the measurements if you have wide feet.
I was a little skeptical from a review of a woman who had her toes bleeding from these shoes, as I know that is often a problem for me with most shoes I wear. Generally I start bleeding in the back of my heel. So I was skeptical that these shoes would make me bleed. However, I was proven wrong. These are one of the only shoes i've worn that haven't rubbed my skin right off. I believe that has to do with the lovely height of the back, which prevents rubbing on the back of your heels, and the perfect width of the shoes. If your feet are too wide for these shoes, then you will probably bleed, but that's to be expected because the shoe does not fit you and that is often something that can happen with shoes that don't fit.
I originally bought the green pair, because I loved the color, but then I loved the fit so much that I bought a second, black pair. These are one of the only shoes with heels I actually wear because they are more comfortable than most, and they're just adorable. I am not generally a high heel wearer, so I'm not used to walking with my heels elevated. Despite that, these shoes were fairly easy to walk in. They are my favorite pairs of heels. and I do highly recommend them.
I will be buying more colors in the future, and I hope they will come out with more colors like brown and an aqua/blue shade.
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Reviewed in the United States on May 22, 2021
★★★★★ 5
Love this shoe style and color!
Size: 11, Color: Dark Sage Nbpu, Size: 11, Color: Dark Sage Nbpu
Love the shoe, comfortable and cute. The green is gorgeous! Happy with this purchase.
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Cute
Size: 6.5, Color: Black (Pu)
Cute, comfortable.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Trying to get what's in picture
Size: 9, Color: Natural Nbpu
Amazon said my size was a 10. So i ordered a 10. Waaaay too long, wide big in general, and I have a wide foot so I was pleasantly surprised. Company did not offer any color in size 9.5 but according to their size guide I "might" fit into a 9! Again, pleasantly surprised that i totally did and even when I put in my "Dr. Scholl's" inserts, i have slight wiggle room for when feet swell. Overall I am happy with the shoe fit, comfortability and height...not that I'd wear these for more than 8 hrs., but comfy enough for a wedding or to wear to work when I have a "mostly office day" instead of out in the yard. HOWEVER... i loved the color and suede-ey look/feel pattern of the size 10. It was exactly as picture/info described. But I'm not sure what happened to the size 9? wth? Although i ORDERED exact same shoe/color but in smaller size...what I got was a much lighter color, and NOT the suede fabric...more nubuck. Bu inside of shoe had same info/tag as the 10. Really hoping that it was a packing/labeling error. Will try one more time to order the 9, in the same 'name' fabric. Fingers crossed that I get what I ordered/want. Otherwise it'll be a return and less stars.
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Reviewed in the United States on November 4, 2024
★★★★★ 5
I can’t say anything but I really love them
Size: 6, Color: Natural Nbpu
They look great. They feel great
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Reviewed in the United States on April 10, 2026