Synths ⇝ Kurzweil ⇝ Kurzweil K250

The K250 is a synthesizer and early 16-bit sampler workstation. It can record at sample rates from 5 kHz (100 seconds) to 50 kHz (10 seconds). It has a 12-track sequencer and is one of the first synthesizers based on samples in wave ROM.

It was developed as a collaboration between Ray Kurzweil and Stevie Wonder.

Specifications

Year Released: 1984

Keyboard: 88 keys with velocity

Polyphony: 12 notes

User Patches: 341

ROM: 96 instruments

Sequencer Memory: 12,000 notes

Weight: 95 lbs.

User Demo Videos

Rating

File Downloads

Kurzweil K250 Service Manual

Items for Sale on Reverb

Kurzweil Vintage Synth K250 ($975)

Kurzweil K250 1980s - Key Contact / Trigger circuit boards ($95.75)

Kurzweil K250 1980's - Black ($500)

Kurzweil - K250, K250 RMX - Slide potentiometer ($16.99)

Kurzweil K250 RMX Led Conversion Kit 2025 ($30)

Kurzweil K250 RMX Rack 1987 - black ($4,246.50)

Kurzweil 250 (K250) workstation sampler vintage keyboard ($414.94)

Kurzweil Kurzweil K2500X "Bottom A" Replacement Key First A Key 42W Style for 88 Note Keyboard ($39)

Custom padded cover for Kurzwell K2500 / K2500S 76-Key Keyboard ($54.78)

Kurzweil 250 RMX Black K250 Rackmount ($1,199)

Kurzweil K2500X 88-Key Digital Workstation Synthesizer 1990s - Black ($1,400)

Kurzweil K2500X 88-Key Digital Workstation Synthesizer 1990s - Black ($1,400)

KB3 Mode sticker for Kurzweil K2500 Series ($15)

Kurzweil K2500X 88-Key Weighted Workstation Synthesizer – VAST Synthesis ($999.99)

Kurzweil K2500R Rackmount Digital Sound Module 1990s - Black ($574.96)

Kurzweil K2500S 76 Key Synthesizer with Hard Drive Emulator and (3) CD's ($899)

Kurzweil K2500XS Synthesizer/Workstation Late 1990’s - Black ($1,000)

Kurzweil K2500X 88-Key Digital Workstation Synthesizer 1990s - Black ($1,098.36)

Kurzweil K2500XS 88-Key Digital Workstation Synthesizer in SKB Case ($999.99)

Kurzweil K2500 1996 - black ($700)

Kurzweil K2500X AES with case ($3,661.21)

Kurzweil K2500R Rackmount Digital Sound Module 1990s - Black ($498)

Kurzweil K2500 K2500X Internal Ribbons and Cables ($89)

Kurzweil K2500/K2500X Original Audio I/O-Jack Board. Works Great !... ($49)

Kurzweil K2500 K2500X Power Inlet Module ($69)

Kurzweil K2500 K2500X Digital I/0 Backlite Power Board ($89)

Kurzweil K2500X Replacement Keys 1 Octave (12 Pcs) 42W Style for 88 Note Keyboard ($99)

Pitch bend/mod wheel assembly for Kurzweil K2500/K2600 (for international shipments contact me) ($65.90)

Kurzweil K2500X "Top C" Replacement Key Last C Key 42W Style for 88 Note Keyboard ($39)

Kurzweil K2500 - Ribbon cable for Keybed (for international shipments contact me) ($30.51)

Kurzweil K2500X Pitch Bend / Mod Wheel Assembly ($69)

Kurzweil K2500 K2500X Right Side End Cap Replacement Part ($49)

Kurzweil K2500R 1995 - Black ($106.16)

Kurzweil K2500 Series Operating System Floppy Disk 1996 ($15)

Kurzweil K2500 K2500X Disk Drive Bezel Floppy Holder ($19)

Kurzweil K2500 Series Player Control Board K2500/X ($59)

Kurzweil K2500 K2500X etc. Battery Compartment Battery Holder ($29)

Kurzweil K2500 Series Reference Guide [USED] ($69.99)

Kurzweil K2500 Series Reference Guide [USED] ($69.99)

KURZWEIL 76-Key K2500 K2600 PC2 Original 44-Note Keyboard Key Contact Board ($49)

Kurzweil K2500 / K2600 - Switch board (for international shipments contact me) ($46.38)

Kurzweil K2500X 88 Note Keyboard Contact Boards Low & High for K42W Model Keys ($99)

Kurzweil K2500 Series User Manual Performance Guide ($29)

Kurzweil K2500X Transformer 220V Power Transformer D5J2 ($69)

Kurzweil K2500 Series Power Supply Board (For Early Version Mainboard) ($119)

Kurzweil K2500 Series Daughter Board Assy K25D ($149)

Kurzweil K2500 K2500X Slider Knob - 9 Pcs Slider Knobs ($59)

Kurzweil - K2500, K2500X - Rotary Potentiometer 10kb LCD Contrast ($12.90)

Kurzweil K2500 K2500X Fan ($19)

KURZWEIL 88-Key K2500X, K2600X Original 39-Note Keyboard Key Contact Board ($34)