Kurzweil K2088 – 88-Key V.A.S.T. Synthesizer Workstation
OVERVEW
The Kurzweil K2088 represents the pinnacle of the K20 series, combining decades of sound innovation with today’s most powerful performance features. At its heart is the Dynamic V.A.S.T. synthesis engine, offering 32 layers per program, modular DSP tools, advanced filters, FM layering, and Kurzweil’s VA oscillators for an unrivaled palette of sound design possibilities. With 256 voices of polyphony, 2GB of user sample memory, and a deep library of over 2000 factory programs plus 500 multis, the K2088 delivers everything from reimagined K2-era classics to entirely new soundscapes.
Designed for both studio and stage, the K2088’s 88-note hammer-action keyboard provides a natural, expressive feel with aftertouch and customizable response. Professional-grade effects, 16 arpeggiators, 16 step sequencers, extensive controller options, and seamless DAW integration ensure complete creative freedom. Whether you’re a composer, producer, or live performer, the K2088 is the ultimate tool for pushing boundaries while honoring Kurzweil’s timeless sonic legacy.
KEY HIGHLIGHTS
Dynamic V.A.S.T.
V.A.S.T. was born in the K2000 series. The K2088 expands on Kurzweil’s legendary Variable Architecture Synthesis Technology, offering 32 layers per program, deeply customizable signal paths, and a host of modular DSP tools, including new oscillators, FM layers, multi-pole filters, and FX.
Patented FlashPlay® Technology
FlashPlay® provides the K2088 with a staggering amount of horsepower. Up to 4 GB total capacity with zero-loading time, and ultrafast performance.
2 GB of Factory Sounds
The K2088 delivers a vast sound library of over 2000 factory Programs and over 500 Multi combinations centered around updated recreations of many synth-focussed sounds from Kurzweil’s legendary K2000, K2500, and K2600 instruments, as well as reenvisioned must-haves from the K2700, Forte, PC4, PC3, and SP6. Categorized selections also include our world-class pianos, EPs, organs, strings, basses, guitars, and more.
2 GB User Sample Memory
With 2GB of non-volatile, user sample flash memory, tap into Kurzweil’s incomparable backwards compatibility, drawing from decades of legendary sounds ranging from our K2000 to the K2700 series. Supported formats include .WAV, .AIF (up to 16-bit/96kHz), and Kurzweil-specific file types (.K27, .FOR, .PC4, .P3K, .KRZ, .K25, .K26).
256 Voices of V.A.S.T. Polyphony
Loads of lightning-quick polyphony to support your most demanding sonic explorations and performances.
6-Operator FM Engine
6-Operator FM Engine with the ability to load original FM SysEx files. FM layers are a new addition to VAST programs and can be combined with VAST features to go far beyond classic FM synthesis.
Virtual Analog
The K20 Series features advanced anti-aliasing power-shaped oscillators and DSP processing derived from Kurzweil’s legendary VA1 concept synth, offering authentic analog emulations alongside stunningly intricate new sounds.
Studio-Quality FX
The K2088 delivers an extensive suite of professional-grade effects, including lush reverbs, dynamic delays, rich choruses, and more – all customizable to suit your sound. A dedicated Master FX section with 3-band EQ and compression ensures your mix is polished and performance-ready.
KB3 ToneReal™ Organs
Inspired by classic tonewheel organs, the K2088 offers 9 realistic drawbars and full control over rotary speed, chorus/vibrato, brake, percussion, and more – all instantly accessible.
Get in Touch
The K2088’s 88-note, fully-weighted, hammer-action keyboard delivers a dynamic and responsive playing experience ideal for high-energy performances and detailed sound design. Featuring aftertouch for added expressiveness and fully adjustable velocity and pressure settings, it adapts seamlessly to your playing style, providing exceptional comfort and control.
Take Control
Go beyond common splits and layers and experience new hyper multis, an extension to the singular program experience. Massive sonic combinations are at your fingertips with Kurzweil’s renowned Multi mode offering 16 zones of unmatched MIDI control!
Express Yourself
Elevate your performances and productions with 40 programmable physical controllers per multi-zone. The K2088 features a versatile 3-section ribbon controller, keyboard aftertouch, an array of programmable knobs, buttons, sliders, wheels, and a host of pedal inputs.
Endless Rhythmic Inspiration
With 16 fully programmable arpeggiators and dedicated front panel controls, craft intricate rhythms and evolving textures. Whether you’re building complex sequences or driving energetic grooves, each arpeggiator operates independently for unmatched depth and dynamic movement across every layer of your sound.
Modulation in Motion
Bring your sounds to life with 16 simultaneous MIDI CC Step Sequencers, delivering evolving textures, animated pulses, and expressive sonic movement.
Real-Time MIDI Sequencing
Instantly trigger, sync, and control up to 16 simultaneous MIDI sequences. Choose from a built-in library of patterns or record and import your own for limitless creative possibilities!
Intuitive Visuals
Easily navigate the K2088 with its bright, 4.3″ widescreen color LCD display (480×272), designed for clear and effortless operation. Switch between three different view modes (Large, List, and QuickAccess), on the fly, to suit your needs moment to moment.
A Sound Selection
Instantly access sounds through direct entry or explore the category browser with convenient category defaults. Customize your workflow with QuickAccess mode to create personalized sound groupings for instant recall. Need something specific? The search function lets you quickly locate sounds by name or keyword, keeping your creativity flowing without interruption.
Program Audition
Once you’ve narrowed your selection, instantly audition any factory program with the Program Demo feature, making it easy to explore and discover the perfect sound.
Get Organized
Add custom notes to your Programs and Multis to help you keep track of your library and more complex setups.
Master Transport Controls
Take command of your arpeggiators, CC sequencers, onboard multitrack sequencer, and external DAW with the dedicated front-panel master transport section.
Transpose on the Fly
Play in any key or octave instantly by way of the dedicated front-panel -/+ transpose buttons conveniently located above the pitch and modulation wheels.
Balanced Audio Outputs
Easily connect to your mixer, amplifier, or studio monitors with the K2088’s four balanced 1/4″ TRS outputs (two stereo pairs) for flexible audio routing. Enjoy crystal-clear sound with premium 32-bit D/A converters, automatic mono switching on the main outputs, and a dedicated 1/4″ stereo headphone jack for private monitoring.
Live Audio Inputs with FX
Jam along with an external audio source using the convenient 1/4″ inputs. Enhance your sound by processing the input through dedicated real-time effects to craft unique textures. Perfect for live performances, you can polish vocals or backing tracks and blend them internally with the K2088’s own output for a fully integrated mix.
Mac/PC Desktop Editor
Dive deeper into V.A.S.T. and the K2088 with the suite of external Editor applications for Mac, PC, and iPad.
FEATURES
- Dynamic V.A.S.T. engine – 32 layers per program with modular DSP, FM layers, multi-pole filters, and flexible routing.
- 256-voice polyphony – Lightning-fast performance for complex arrangements and layered sound design.
- Extensive sound library – 2000+ factory programs, 500+ multis, plus 2GB of user sample memory.
- Diverse synthesis engines – 6-operator FM engine, Virtual Analog oscillators, KB3 ToneReal™ organ emulation.
- Fully weighted 88-note keyboard – Hammer-action Fatar TP/40L keybed with velocity and aftertouch sensitivity.
- Studio-quality effects – 1000+ effect chains including reverb, delay, chorus, rotary, compressors, and more.
- Performance-ready controls – Ribbon controller, 9 sliders, 9 knobs, 10 buttons, wheels, aftertouch, and pedal inputs.
- Advanced sequencing tools – 16-track MIDI sequencer, 16 arpeggiators, 16 MIDI CC step sequencers, and Riff triggering.
- Hands-on workflow – 4.3″ color LCD with category browsing, QuickAccess mode, sound search, and program audition.
- Flexible connectivity – 4 balanced TRS outputs, stereo inputs with FX, headphone out, MIDI I/O, and USB MIDI/host support.
- Integrated DAW control – Master transport controls, transpose buttons, and editor support for Mac, PC, and iPad.
- Professional build – Rugged design with internal power supply; ideal for both stage and studio applications.
TECHNICAL SPECS
Keyboard: 88-key, fully-weighted, hammer-action with velocity and pressure (aftertouch) sensitive adjustable keys (Fatar TP/40L)
Display: 480 x 272 pixel high-resolution color LCD with adjustable brightness
Polyphony: 256 voice polyphony, dynamically allocated
Multitimbral: 16 parts (one per MIDI channel)
Architecture:
- Dynamic VAST: powerful synthesis engine, with user-programmable DSP algs and routing.
- Cascade Mode: route one layer through the DSP of any other layer within a program – up to 32 consecutive layers deep!
- KB3 ToneReel Engine
- 6-Operator FM Engine
- VA1 Virtual Analog Oscillators + DSP
Sample Flash Memory:
- 2 GB factory samples
- 2 GB of re-loadable, non-volatile, user flash memory
Factory Programs: 2042
User Programs: 4000
Factory Multis: 587 (up to 16 independent controller zones)
User Multis: 4000
General MIDI: No
Kurzweil String Resonance: Yes
Master EQ/Compressor: Yes
Effects:
- Over 1000 complex effect chains, incorporated into programs featuring our award-winning effects – reverbs, delays, chorus, flange, phaser, EQs, distortions, rotary speaker simulators, compressors, and more
- 32 total FX units
Controllers:
- Monopressure (Aftertouch)
- 1 x pitch wheel
- 1 x assignable modulation wheel
- 1 x assignable ribbon controller
- 9 x assignable sliders
- 9 x assignable knobs
- 10 x assignable buttons
- 2 x transpose switches
- Tap tempo button and tempo knob
- Arp controls
- Transport controls
- 2 x switch pedal inputs, each supporting single/dual switch pedal or single half damper pedal (pedals sold separately)
- 2 x continuous control pedal inputs (pedals sold separately)
Sequencer: 16 Tracks; 960 PPQ resolution. Song editing functions include both event and track-based tools like quantize, swing, remap, controller scaling, and more.
MIDI CC Step Sequencers: 16 simultaneous
Riffs: 16-per Multi
Arpeggiators: 1-per Program, 16-per Multi
System Sample Rate: 48kHz
Analog Outputs:
- Four (2 pairs) 1/4″ balanced TRS analog (32-bit DACs)
- Automatic mono switching on main outs
- +21dBu maximum output
- 50Ω balanced source impedance
Audio Inputs: Two 1/4” jacks (one stereo pair) accepting Line/Instrument level signals.
Headphones:
- 1 back panel 1/4″ headphone output
- 130mW into 32 ohm headphones
MIDI: In, Out
USB:
- Complete MIDI functionality over USB
- Play and control the K2700 with a USB MIDI controller (USB host functionality)
- User Object file transfer to/from USB Flash Drive
- Operating System updates from USB Flash Drive
Power: Internal power supply
Included Accessories: Power cable
Software Editors: External editors for Mac OS X, Windows PC and iPad
FREE OS Updates: OS updates via USB drive
Dimensions:
- Height — 5.1” (13.0 cm)
- Depth — 15.5” (39.5 cm)
- Length — 51” (129.5 cm)
Weight: 49.3 lb (22.38 kg)
DOWNLOADS
User Manuals
K20 Series Musician’s Guide – 5MB — Primary Owner’s Manual (Rev 003) [18-7-2025]
K2061 / K2088 Musician’s Guide_003 – 10MB — Primary Owner’s Manual (Rev 03) – .epub Format for e-Readers and Mobile Devices [18-7-2025]
K20 Series Complete_Object_Lists – 588KB — Spreadsheet Documenting Each Factory Object Type [12-09-2025]
OS Updates
K20 V1.06 Update – 8MB — Contains: OS 4.51.38789, Objects 1.01.11, Installation Instructions, Release Notes [27-06-2025]
Software Editors
K20 Series SoundEditor (Mac) – 47 MB — v1.16 of the K20 Series Desktop Editing Software for Mac – Requires the Latest K20 Series OS Update (link above) [17-09-2025]
K20 Series SoundEditor (PC) – 24 MB — v1.16 of the K20 Series Desktop Editing Software for PC – Requires the Latest K20 Series OS Update (link above) [17-09-2025]
K20 Series Controller (Mac) – 39 MB — v1.06 of the K20 Series Controller Software for Mac – Requires the Latest K20 Series OS Update (link above) [01-07-2025]
K20 Series Controller (PC) – 19 MB — v1.06 of the K20 Series Controller Software for PC – Requires the Latest K20 Series OS Update (link above) [01-07-2025]
K20 Series PlugSE (Mac) – 96 MB — v1.05 of the K20 Series PlugSE Software for Mac – Requires the Latest K20 Series OS Update (link above) [08-08-2025]
K20 Series PlugSE (PC) – 34 MB — v1.05 of the K20 Series PlugSE software for PC – Requires the Latest K20 Series OS Update (link above) [08-08-2025]
K20 Series iPad Editor — Links to App Store for Download – Requires the Latest K20 Series OS Update (link above [01-07-2025]

































