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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
4.3 ★★★★★
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Product Reviews
★★★★★ 5
Great taste!
Flavor Name: Orange, Size: 15 Ounce (Pack of 1)
Love the Metamucil taste and it works well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 4
Wonderful tase & rapid response
Flavor Name: Orange, Size: 15 Ounce (Pack of 1)
Got it yesterday and the effect is immediate. Love the flavor too. It’s great knowing that I might have finally found the cure for my gut. Try it 👍
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Glad I Gave It a Try
Flavor Name: Orange, Size: 15 Ounce (Pack of 1), Flavor Name: Orange, Size: 15 Ounce (Pack of 1)
I wasn't sure if this Metamucil fiber supplement would make much of a difference, but after taking it consistently, I'm really glad I decided to try it. The results weren't instant, but over time I noticed that I felt lighter, cleaner, and just generally better overall. The sugar-free formula is a nice bonus, and it's easy to make part of a daily routine. I've found that consistency is key, and once I started taking it regularly, I could definitely tell a difference. If you're on the fence about trying a fiber supplement, this one has worked very well for me. It's a simple addition to my day that has had a noticeable positive impact. I'll definitely keep using it.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
It works.
Flavor Name: Orange, Size: 15 Ounce (Pack of 1)
It really does help 'keep you regular' & the name brand dissolves easier than the generic W@lm@rt brand. It doesn't MAKE you 'go', it just gives your gut a little something to work with, so to speak. Maybe TMI, but you also go alot cleaner, if you catch my drift. That's a nice bonus. ;0)
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Great to curb food cravings
Flavor Name: Orange, Size: 15 Ounce (Pack of 1)
Saw this on a YouTube video for reducing appetite/curbing snack cravings and wow! I’m on day 2 and this will always be in my pantry. After 30 min of drinking this I feel sooo full. No appetite for 4 hours like I ate a huge meal. The flavor is also good. No cramps or gas and the fiber content isn’t crazy so I haven’t experienced any negative side effects either. If you’re trying to lose weight this may help. Haven’t thought about snacking all day. Give it a try
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
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