Korg KRONOS 73 Music Workstation

KRONOS
The flagship returns
Summary

KRONOS defined the modern music workstation. Now it's back, and better than ever. Combining
unrivalled power, speed, and versatility, the new KRONOS features a reengineered architecture with 60%
faster startup, an enhanced TouchView® interface, and a sleek, premium design. With nine powerful
sound engines, over 300 available premium sound libraries, and 256 brand-new programs, KRONOS
delivers unmatched sonic possibilities. Advanced sequencing, customisable Set Lists, and seamless
backward compatibility make KRONOS the ultimate tool for elevating stage and studio performances.
Key features

• Reengineered system architecture with 60% faster startup time.
• Enhanced TouchView® display for faster, more intuitive control.
• Powder-coated metal body with sleek black wooden side panels.
• 62GB SSD for extensive user sampling and sound library expansion.
• Over 300 premium Sound Libraries available, including curated content from top designers.
• 256 new programs, with highlights like the Italian Grand Piano and Tine EP I Early.
• Nine powerful sound engines, each excelling as a standalone synthesizer.
• Advanced Set List mode with customisation options and performance notes.
• Comprehensive effects suite with 16 onboard processors and detailed EQs.
• 16 MIDI and 16 audio tracks for advanced sequencing and recording.
• RH3 weighted hammer action and semi-weighted keyboard options
• Open Sampling System for flexible audio manipulation.
• Backward compatibility with earlier KRONOS models.
• Integrated KARMA® and Drum Tracks for creative phrase and groove generation.

Overview

New sounds, unmatched expression
The new KRONOS builds on its legendary foundation by introducing 256 additional programs, crafted to
inspire your creativity and elevate your music. This is in addition to the thousands of included programs
and combinations that have made KRONOS the ultimate music workstation. Among the new additions
are 128 brand-new programs, featuring highlights such as the Italian Grand Piano, known for its stunning,
transparent resonance, and the Tine EP I Early, which authentically replicates the earthy, vintage tone of
metal rod (tine) electric pianos. The expanded palette also includes FM electric pianos, versatile synth
pads, lush leads, and more, providing a wide range of useful sounds for every genre—from timeless
classics to modern chart-toppers.
Complementing these are 128 expertly curated programs from the KRONOS Sound Libraries. Developed
in collaboration with 12 world-class sound designers, these programs showcase their most inspiring
work, handpicked to enhance your sonic palette. This carefully curated selection features new piano
voices and a variety of other tones, ensuring that KRONOS remains the ultimate tool for musicians
seeking expressive, versatile, and inspiring performance options.

Exclusive programs and combinations

The new KRONOS comes preloaded with an incredible array of iconic sounds from the KRONOS Sound
Libraries, delivering instant inspiration and versatility. Among these are:

• KRS-08 Best of TRITON: A brilliant collection of 128 programs from the legendary TRITON, one of the best-selling synthesizers of all time. Included as a preloaded gift, this collection brings the timeless sounds of the TRITON directly to your fingertips.
• KRS-04 Pro Splits and Layers: Essential keyboard splits and layers optimised for seamless, realtime
performance.
• KRS-05 Ensemble Combinations: Perfect for band settings, these combinations feature rich brass, lush strings, and powerful synth ensembles.

In addition, KRS-06 and KRS-06B CX-3 Signature Sounds—a collaboration between Korg and top-tier
organists—introduce 256 CX-3 organ programs. These faithfully crafted sounds capture the essence of classic tonewheel organs, preloaded and ready to play.

This treasure trove of sounds ensures every musician, from solo performers to ensemble players, has access to the very best that KRONOS has to oXer, making it the ultimate music workstation for any
creative endeavour.

Designed for musicians, built for performance

The KRONOS control surface has been meticulously engineered to provide unmatched ease and precision, allowing musicians to focus entirely on their creativity. Its thoughtfully designed layout features
eight real-time knobs, nine sliders, and an extensive suite of performance controls—all positioned for intuitive access and fluid operation.

At the heart of this seamless experience is the enhanced TouchView® display, now more responsive and faster than ever. This large, high-resolution touchscreen puts everything you need at your fingertips,
delivering instant access to key settings, parameters, and performance tools. Whether you're on stage or in the studio, navigating the KRONOS is eXortless and precise.

For long-time KRONOS users, the familiar interface ensures a smooth transition, while newcomers will appreciate its simplicity and intuitive design. With its blend of sophistication and accessibility, KRONOS
redefines what it means to have control at your fingertips.

Unmistakeable style

The KRONOS maintains its legacy of excellence while introducing a fresh, fourth-generation design that blends durability, sophistication, and modern aesthetics. The powder-coated metal body not only ensures exceptional resilience but also provides a premium tactile experience, ready to withstand the demands of stage and studio use.

Adding to its visual appeal, the refined black wooden side panels lend a touch of elegance, making the KRONOS as stunning to look at as it is powerful to play. These thoughtful enhancements ensure that KRONOS not only delivers impeccable performance but also commands attention wherever it goes - a true statement piece for any musician.

Optimised for speed and precision

KRONOS raises the bar for performance eXiciency with its reengineered system architecture, delivering a 60% faster startup time compared to previous models. This dramatic improvement minimises downtime,
ensuring you're ready to perform or create without delay.

Paired with the enhanced TouchView® interface, KRONOS offers unmatched responsiveness, making every interaction feel instantaneous and eXortless. Whether navigating menus, adjusting parameters, or
diving into complex workflows, the KRONOS ensures that speed and precision are always at your fingertips.

Effortless compatibility

Since its debut in 2011, KRONOS has consistently evolved, with each generation receiving substantial updates while maintaining full compatibility across models. This long-term approach ensures that all
KRONOS systems can utilise the extensive range of KRONOS Sound Libraries, allowing musicians to seamlessly integrate new sounds and features as they become available.

Looking ahead, a Soundpack will be released in the second half of 2025 for previous KRONOS and NAUTILUS owners, bringing the latest KRONOS sounds to earlier models. This commitment ensures that
every musician can benefit from Korg's ongoing innovations, regardless of their system.

Additionally, the new KRONOS offers two types of preloaded data, optimised to support both KRONOS 1/X and KRONOS 2 in their respective program orders. For those seeking even greater versatility, premium sounds like the Austrian Piano and Italian Piano are available for purchase through the KRONOS Sound Libraries, further expanding its capabilities.

*Two types of preloaded data are available for the new model to support both KRONOS 1/X and KRONOS 2, in either program order.
**Austrian Piano, Italian Piano, etc., which are not included in early models, can be used by purchasing Sound Libraries.

Expand Your Sound with KRONOS Sound Libraries

The KRONOS Sound Libraries oXer an extensive collection of over 300 unique titles, designed to expand and enhance your KRONOS experience. These libraries feature high-quality sound samples and
programs, each available separately, providing musicians with specialised sounds not included in the main unit. From exquisite pianos and lush strings to punchy basses and expressive synths, the KRONOS Sound Libraries allow you to customise your instrument to suit any genre or creative need. Each library is available in two formats:

EXs Libraries: Featuring PCM data for rich and detailed sampling.

KRS Libraries: Focused exclusively on program data for added versatility.

Designed to integrate seamlessly with all KRONOS models, these libraries give you the freedom to explore new genres, refine your sound, and push the boundaries of your music. With the ability to share a license
across up to three registered KRONOS or NAUTILUS units, the KRONOS Sound Libraries are the perfect way to personalise and elevate your performance.

Please note that demo versions of libraries may include volume limitations during playback. The total of up to 3 units can include Nautilus

Enhanced SGX-2 Grand Piano Sound Engine

The KRONOS SGX-2 Grand Piano engine redefines realism and expression in piano sound design, building upon the acclaimed SGX-1 functionality to deliver an unparalleled piano-playing experience. Featuring non-looped, natural decay stereo samples recorded for every key, the SGX-2 provides the highest level of
authenticity. Unique tools further allow you to tailor the piano sound to your precise needs. The SGX-2 engine offers four distinct grand pianos, each with its own character:

• Berlin Grand: Resonant and rich, with a striking sense of depth.
• German Grand: Deep and dynamic, perfect for classical performance.
• Japanese Grand: Bright and lively, ideal for contemporary styles.
• Italian Grand: Transparent and gorgeous, bringing a fresh tonal palette to the KRONOS.

Additional enhancements include Sympathetic String Resonance, adding realism when the damper pedal is engaged, and newly recorded Una Corda (soft pedal) samples for even greater expressive control.
Please note: the Italian Grand does not include Una Corda effects.

Whether you're performing on stage or crafting music in the studio, the SGX-2 Grand Piano engine ensures every note resonates with clarity, depth, and emotion.

Massive sound selection

KRONOS offers an expansive sonic palette, with thousands of expertly crafted sounds covering every genre. Powered by a vast 21 GB library of preset waveform data and created using multiple synthesis modes, each sound reflects the artistry and precision of the Korg Sound Design team.

The KRONOS internal SSD provides 62 GB* of storage, oXering ample space for user sampling and the option to expand your collection with additional KRONOS Sound Libraries. These optional libraries feature professionally programmed sounds, giving you access to fresh tones without requiring any additional hardware.

For the ultimate inspiration, Artist Signature Programs bring you the actual sounds used by top-ranking musicians, while Song Programs recreate the signature keyboard tones of iconic rock and pop classics.
Whether you're honouring the originals or shaping them into something uniquely yours, these sounds provide the perfect starting point for reative exploration.

*SSD capacity is subject to change without notice.

Nine distinct sound engines
At the heart of KRONOS lies its nine powerful sound engines, each a standalone synthesizer capable of delivering unparalleled sonic depth and versatility. Representing the pinnacle of sound design technology,
these engines cater to every type of musician, from those seeking ready-to-play tones to ambitious sound designers crafting their own unique creations.

Each engine is equipped with precise programming parameters, real-time controllers, and integrated effects, providing the tools needed to refine every detail of your sound. Assignable modulation routings further enhance creative potential, allowing for intricate customisation and expressive performance control.

Whether you need the warmth of analogue modelling, the precision of PCM sampling, or the dynamic possibilities of physical modelling, the KRONOS sound engines deliver cutting-edge innovation and
unmatched flexibility to suit any musical endeavour.

Set List Mode

KRONOS can organize all of the resources you need to get through a song—or a set—using the Set List mode. Using the Set List mode, the TouchView display can host 16 color-coded touch-screen buttons;
each one can instantly call up the appropriate Preset, Combination, or Sequence—regardless of mode!

You can even add handy performance notes ("Sing on Chorus;" "Transpose Down;" "Wait for Sax Solo;" etc.) to each one.

The Set List mode adds a dedicated nine-band graphic EQ, allowing the overall tone to be tweaked to match the venue. Set List mode now allows for deeper customization with many slot color options, text size variations, and a full-screen text editor. Connecting a USB computer keyboard makes it simple to enter text and numeric values.

Colour TouchView display

The KRONOS puts control at your fingertips with its large eight-inch SVGA colour TouchView® display. Boasting a high resolution of 800 x 600 pixels, this vibrant touchscreen serves as the nerve centre of the
instrument, oXering an intuitive and visually rich interface.

Beyond simple sound selection and parameter adjustments, the enhanced Touch-Drag functionality provides precise, detailed control, allowing you to make intricate changes with ease. From adjusting the lid height of a grand piano to configuring patch cables on a semi-modular synthesizer, the interactive instruments and panel graphics open up a world of creative possibilities.

To further streamline your workflow, the TouchView display features a Search Function, enabling you to quickly locate and preview sounds by title. With its seamless navigation and advanced features, the
TouchView display ensures every interaction with KRONOS is intuitive, eXicient, and inspiring.

Sequencer composition tools

The KRONOS transforms your musical ideas into fully realised compositions with its powerful onboard sequencer. Featuring both MIDI and audio tracks, the sequencer is loaded with innovative tools that
simplify complex tasks and enable creative possibilities beyond what traditional computer-based systems can oXer.

KARMA® Technology

Revolutionising music creation since its debut in 2001, KARMA is now in its greatly enhanced second generation on KRONOS. This algorithmic music technology generates intricate phrases, dynamic drum grooves, and fully orchestrated backing tracks based on the notes and chords you
play. Features like KARMA Wave-Sequencing, Note Mapping, and up to eight scenes per layer provide unparalleled creative potential, inspiring new directions for your compositions.

Drum Tracks

Originally introduced with the M3 music workstation, Drum Tracks have been expanded for KRONOS. Whether you need a simple reference beat, a detailed rhythm pattern, or a complete drum performance, Drum Tracks delivers professional grooves that emulate the feel of a live drummer. These features rival the capabilities of standalone drum machines, giving you powerful rhythmic tools at your fingertips.

Open Sampling System

KRONOS allows you to sample external audio sources seamlessly, no matter which mode you're using—Program, Combination, or Sequencer. You can even resample your KRONOS performance, creating custom sounds that can be saved to the user sample bank. With compatibility for AIFF, WAV, SoundFont 2.0, and AKAI S1000/3000 formats, the Open Sampling System integrates eXortlessly with your existing setups. USB and Ethernet connectivity make transferring large sample data to and from your computer fast and efficient.

With these tools, KRONOS elevates your music production workflow, providing the flexibility and power needed to bring your creative visions to life.

16-Track MIDI Sequencer / 16-Track Audio Recorder

KRONOS features a sequencer/recording section that offers both 16 MIDI tracks plus 16 audio tracks; a great resource for putting together a dazzling performance or a brilliant production. MIDI sequencing
makes it easy to capture ideas, inspiration, and pro-quality phrases using the KARMA, Drum Track, or RPPR (Realtime Pattern Play/Recording) functions.

The 16-track audio recorder simultaneously captures up to four tracks of 16-bit/24-bit uncompressed data at a sampling rate of 48 kHz. Play along with recorded tracks, add effects, and then resample the KRONOS itself and place the resampled WAV files directly in a track. When polishing your tracks, feel free to use mixer automation and editing functions such as copy, paste, and normalize to get the results you want. Then you can assemble your album right from the TouchView display!

16 onboard effect processors

The KRONOS offers a powerful effects system with 16 versatile eXect slots, giving you the flexibility to shape and refine your sound with precision. These slots allow you to assign a wide range of effects,
enabling intricate processing across individual timbres, multiple tracks, or even your entire mix.

With 12 Insert EXect slots available, you can apply tailored processing to specific timbres in a Combination or individual tracks in the sequencer. Two Master EXect slots provide global control via sends 1 and 2, while two Total EXect slots ensure the final stage of your mix is cohesive and polished.

In addition, every timbre, sequencer track, and audio track includes a dedicated three-band EQ, allowing subtle tonal adjustments or bold sound transformations. The KRONOS effects system provides the tools
you need to elevate every performance and production to professional standards.

USB/MIDI Integration

The KRONOS offers robust USB/MIDI host functionality, enabling seamless integration with classcompliant USB-MIDI controllers. This versatility allows you to enhance your workflow by connecting external controllers directly to the KRONOS without the need for additional hardware or complex setups.

For added convenience, Korg pad-equipped USB MIDI controllers, such as the nanoPAD, nanoPAD2, and padKONTROL, are instantly optimised for use. Pads 1 through 8 are automatically mapped to KRONOS's
virtual chord pad function, letting you play drums, trigger chords, or switch between chords in chord mode eXortlessly. This streamlined compatibility empowers you to expand your creative possibilities and
maximise your performance potential.

Seamless Sound Transitions

The KRONOS ensures your performances remain uninterrupted and flawless with its smooth sound transition technology. Whether you're switching program sounds for the next section of a song or moving
between Program and Combination modes, the current sound remains active, with all effects preserved during the change.

This seamless transition capability eliminates dropouts entirely, allowing for fluid and professional performances without compromise. Highly praised by musicians worldwide, this feature ensures that the KRONOS delivers exceptional reliability and consistency, whether on stage or in the studio.

Flagship RH3 Weighted Hammer Action

Experience the authentic feel of a grand piano with Korg's premium RH3 Real Weighted Hammer Action, featured on the 88- and 73-key models of the KRONOS. Made in Japan with precision craftsmanship, the
RH3 keybed is divided into four weight zones, gradually transitioning from heavier in the lower registers to lighter in the higher octaves. This provides a truly natural playing experience that faithfully replicates the
touch of an acoustic piano.

Despite its full-size 88-key range, the KRONOS remains slim and compact, fitting comfortably on a standard keyboard stand. This exceptional combination of functionality and design ensures that the
KRONOS is equally suited for stage, studio, or home use, delivering unparalleled playability without compromise.

Natural touch semi-weighted action

The KRONOS 61-key model is designed for musicians who demand agility and responsiveness in their performance. Featuring a lightweight and expressive semi-weighted keybed with aftertouch, this keyboard delivers the ultra-quick response ideal for synthesizer and organ playing.

Its compact design enhances portability, making it perfect for musicians on the go, while the semiweighted action ensures that every nuance of your performance is captured with precision. Whether you're crafting dynamic synth leads or delivering expressive organ solos, the KRONOS 61-key model is built to inspire.

Advanced Control Surface

The KRONOS delivers unmatched control and expressiveness with its sophisticated array of real-time controllers, designed to enhance performance and streamline navigation. Alongside the intuitive
TouchView® display, the control surface provides tactile access to the KRONOS's powerful features, ensuring every parameter is within easy reach.

To the left of the keyboard, you'll find a four-way joystick, ribbon controller, and two assignable switches, giving you dynamic control for pitch bends, modulation, and other creative effects. Additionally, the
Vector joystick is ideally positioned for eXortless manipulation of sound layers and motion effects.

Above the keyboard, nine sliders, eight knobs, and multiple switches allow for precise, real-time interaction with the KRONOS's vast sound-shaping capabilities. Further enhancing its functionality, the
control surface includes a damper pedal input jack with support for half-damping, oXering a truly authentic piano feel. Two additional assignable pedal inputs—one for a footpedal and one for a footswitch—expand your creative possibilities even further.

With this comprehensive control surface, the KRONOS gives you the tools to shape your sound and performance with unparalleled precision and flexibility.

Nine Synthesizer Engines, United in One Instrument

KRONOS harnesses nine distinct synthesizer/sound engines into a single, integrated musical instrument. Dynamic voice allocation and new technologies allow all sound engines to smoothly share a stable,
enhanced hardware platform.

SGX-2 Premium Piano Sound Engine

The SGX-2 Premium Piano sound engine is the pinnacle of piano realism, oXering an unparalleled selection of world-class grand piano sounds. Expanding on the acclaimed SGX-1, the SGX-2
includes the deep German Grand, lively Japanese Grand, distinctive Berlin Grand, and the stunning new Italian Grand. By adding the EXs12 Austrian Grand (sold separately), KRONOS grants access to some of the greatest names in piano craftsmanship.

Un-looped stereo samples, recorded for every key, deliver a natural decay and dynamic expressiveness. Enhanced 12-level velocity switching (upgraded from eight) captures even the most subtle playing nuances, while advanced features like String Resonance and Una Corda samples add unprecedented depth and realism to your performance. Whether you're performing or producing, the SGX-2 delivers an authentic grand piano experience.

EP-1 MDS Electric Piano Sound Engine

The EP-1 sound engine brings the warmth and character of six classic electric pianos to the KRONOS. With the addition of the Tine EP I Early, this engine faithfully recreates the nuances of these legendary instruments. Using Multi-Dimensional Synthesis (MDS) technology, the EP-1 eliminates the transitions and unnatural behavior of velocity-switched and looped samples, oXering a smooth and expressive playing experience.

Customise your sound with modelled amps, cabinets, speakers, and vintage effects, delivering a comprehensive electric piano package that excels in both performance and production. The EP-1 is your gateway to authentic electric piano tones with unmatched detail and dynamic range.

CX-3 Tonewheel Organ Sound Engine

The CX-3 engine brings the iconic tonewheel organ sound to life, building on Korg's legacy of the original CX-3 combo organ from 1980. This engine features meticulously modelled tonewheels, vacuum tube amp simulations, and vintage effects like Vibrato/Chorus. The rotary speaker effect offers seven types, with joystick control for speed manipulation, adding dynamic realism to your performance.

With obsessively recreated details such as fold-back, leakage, and tonewheel instability, the CX- 3 delivers the organ sounds heard in legendary performances. Preloaded with the KRS-06 and 06B expansion libraries, the CX-3 provides 256 programs that bring the rich history of organ sounds to your fingertips.

HD-1 High Definition Synthesizer Engine

The HD-1 engine sets the standard for PCM-based sound generation, using proprietary lowaliasing oscillators, full-bandwidth multimode filters, and ultra-smooth envelopes and LFOs. With 21 GB of PCM data—including sounds previously omitted due to memory constraints—this engine delivers unrivalled sonic depth.

Created by Korg's leading sound designers, the HD-1 provides incredible realism and versatility, offering pristine reproductions of acoustic instruments and expansive digital textures. Whether you're looking for lifelike orchestral sounds or intricate electronic layers, the HD-1 engine
delivers.

MS-20EX Analog Modelling Sound Engine

Faithfully recreating the iconic MS-20 synthesizer from 1978, the MS-20EX engine uses Korg's Component Modelling Technology (CMT) to deliver the aggressive filters, thick sound, and flexible patching capabilities of the original.

The MS-20EX expands upon its legacy with enhanced patch panel functionality, allowing modulation of filters with audio-rate oscillators, audio-to-control signal conversion, and more. With serious polyphony and modern tweaks, the MS-20EX offers the best of analogue with
cutting-edge enhancements.

PolysixEX Analog Modelling Sound Engine

The PolysixEX engine revitalises the beloved Polysix synthesizer from 1981, oXering six-voice polyphony, a self-oscillating four-pole filter, and the classic Chorus/Ensemble eXect. Perfect for recreating lush strings, atmospheric pads, and signature 80s tones, the PolysixEX goes beyond its predecessor with high polyphony and modern enhancements.

The onboard arpeggiator and smooth analogue textures make this engine a go-to choice for both vintage enthusiasts and contemporary creators.

AL-1 Analog Synthesizer Sound Engine

The AL-1 engine, originally featured in the Korg OASYS, delivers cutting-edge analogue modelling with exceptional clarity and versatility. Its anti-aliasing oscillators and filter morphing capabilities allow for the creation of sounds that traditional analogue synths could never achieve.

From rich basses to shimmering leads, the AL-1 combines the warmth of vintage synthesis with the precision of modern design, making it a powerful tool for sound designers and performers alike.

MOD-7 Waveshaping VPM Synthesizer Sound Engine

Combining Variable Phase Modulation (VPM) with wave-shaping, subtractive synthesis, PCM playback, and modular patching, the MOD-7 engine offers an exceptional level of versatility. Inspired by Korg's classic Prophecy and Z1 synthesizers, the MOD-7 is ideal for creating
everything from classic FM keyboards to sparkling pads and experimental textures.

Its patchable architecture enables intricate sound design, while compatibility with vintage DXseries synth sounds expands its creative potential even further.

STR-1 Plucked String Sound Engine

The STR-1 engine brings physical modelling to the forefront, oXering unparalleled realism for plucked and struck-string instruments like acoustic guitars, electric guitars, harpsichords, and ethnic instruments.

Far beyond traditional emulation, the STR-1 allows you to design entirely new sounds that respond dynamically to your touch. With its cutting-edge modelling technology, the STR-1 opens up a world of creative possibilities, blending the organic with the innovative.

Hear, Try and Compare the Korg KRONOS 73 Music Workstation in our showroom

Located in Leicester in the central Midlands and close to Coventry, Nottingham, Derby, Birmingham and Warwick we promise you that a visit to our specialist Digital Piano and Keyboard showroom will not disappoint. Try the full Korg range including the KRONOS 73 Music Workstation and compare it with Yamaha, Roland, all under one roof. Whatever your playing standard our knowledgeable and friendly experts will help guide you through the Keyboard buying process and make sure that you are buying the right instrument for your needs. As ex teachers we are ideally placed to advise and answer any questions you may have. Lifetime support and product tuition with ALL digital pianos.

We sell Digital Pianos and Keyboards. That's it. Nothing else. No distractions and nothing to steal our focus.

Specifications
System
KRONOS System Version 3.2
Keyboard
88 key: RH3 (Real Weighted Hammer Action 3)
73 key: RH3 (Real Weighted Hammer Action 3)
61 key: Natural Touch Semi Weighted

Tone Generator
Synthesis Types
9
SGX-2: Premium Piano (Acoustic Piano)
EP-1: MDS Electric Piano (Electric Piano)
HD-1: High Definition Synthesizer (PCM)
AL-1: Analog Synthesizer (Analog Modeling)
CX-3: Tonewheel Organ (Tonewheel Organ Modeling)
STR-1: Plucked Strings (Physical Modeling)
MOD-7: Waveshaping VPM Synthesizer (VPM Synthesis)
MS-20EX: Component Modeling Technology (Analog Modeling)
PolysixEX: Component Modeling Technology (CMT Analog Modeling)

Maximum Polyphony*1*2
SGX-2: 100 voices*3
EP-1: 104 voices
HD-1: 140 voices
AL-1: 80 voices
CX-3: 200 voices
STR-1: 40 voices
MOD-7: 52 voices
MS-20EX: 40 voices
PolysixEX: 180 voices

*1: In rare cases, when a large number of processor-intensive e;ects are active simultaneously (for instance, more than 14 O-Verbs), polyphony may be slightly reduced.

*2: A portion of the multicore processor in KRONOS is devoted to generating voices, and a separate portion is devoted to generating e;ects. KRONOS dynamically allocates the voice processing power between the engines as necessary. The quoted maximum numbers of voices apply then 100% of the voice processing power is devoted to a single engine.
*3: 100 dual-stereo notes (equivalent to 400 mono voices)

Preset PCM
314 MB (ROM 1,505 Multisamples, 1,388 Drumsamples)

Build-in Expansion PCM Libraries
EXs1 - ROM Expansion
EXs2 - Concert Grand Piano
EXs3 - Brass & Woodwinds
EXs4 - Vintage Keyboards
EXs5 - ROM Expansion 2
EXs6 - German D Piano
EXs7 - Japanese C Piano
EXs8 - Rock Ambience Drums
EXs9 - Jazz Ambience Drums
EXs17 – SGX-2 Berlin D Piano
EXs18 – Korg EXs Collections
EXs22 - SGX-2 Italian F Piano LE
EXs23 - 2 Church Pianos
EXs206 - A2D 10 Selections
EXs207 - Bolder 10 Selections
EXs208 - K-Sounds 10 Selections
EXs209 - KApro 10 Selections
EXs210 - KARO 10 Selections
EXs211 - Kelfar 10 Selections
EXs212 - Kid Nepro 10 Selections
EXs213 - PCreek 10 Selections Vol.1
EXs214 - PCreek 10 Selections Vol.2
EXs215 - Q Up Arts 10 Selections
EXs216 - Soundiron 10 Selections
EXs217 - SOP 10 Selections
EXs218 - Irish Acts 10 Selections

PCM RAM Capacity
Approx. 3GB *4

*4: The memory available for Sampling Mode will change based on the use of Expansion PCM libraries and User Sample Banks. Approx. 760 MB is available when shipped from the factory (When loading the file named "PRELOAD.KSC").

Wave Sequences
598 User memory, 207 Preload
Support for stereo multisamples, synchronization of individual notes, and tempo-based settings.

SGX-2 Program
Premium Piano
Virtual Memory Technology (VMT) plays large samples directly from the internal SSD
Full key stereo sampling, Chromatically sampled at up to 12 velocity levels, no looping.
Damper resonance and mechanical noise are reproduced.
Modeled String Resonance.
Una Corda sample support

PCM
EXs6：SGX-1 German D Piano
EXs7：SGX-1 Japanese C Piano
EXs12：SGX-1 Austrian D Piano (Option Sound libraries)
8 velocity levels, no Una Corda samples
EXs17：Berlin D Piano
12 velocity levels, includes Una Corda samples

Piano Type
80 (With the factory settings, the 16 varieties of EXs12 SGX-1 Austrian D Piano do not produce sound. The
EXs12 option must be downloaded.)
(The 16 types of EXs21 SGX-2 Italian F Piano are the same piano types as the 16 types of EXs22 SGX-2
Italian F Piano LE and refer to the last installation of either EXs21 or EXs22.)

Oscillator Control
Damper Resonance
Damper Noise
Mechanical Noise
Note Release
String Resonance
Una Corda

EP-1 Program
MDS Electric Piano
Tine and reed-type electric pianos powered by Multi-Dimensional Synthesis (MDS), and vintage effects.

Electric Piano Model Types
7
Tine EP I Early, Tine EP I Late, Tine EP II, Tine EP V, Tine EP DMP, Reed EP 200, Reed EP 200A

Oscillator Control
Harmonic Sound Level, Attack Noise, Level, Release Noise Level, Attack Brightness, Hammer Width

Panel Control
Tine Type
Preamp Volume, Tone (Treble, Bass), Vibrate (On/OX, Intensity, Speed), Amp/Cabinet (On/OX, Drive)*5
Reed Type
Preamp Volume, Tone (Treble, Bass), Vibrate (Intensity, Speed), Amp/Cabinet (On/OX, Drive)*5

Effect Types
9
(Small Phase, Orange Phase, Black Phase, Vintage Chorus, Black Chorus, EP Chorus, Vintage Flanger,
Red Comp, Vox Wah)

HD-1 Program
Advanced Vector Synthesis
Control oscillator volumes and synthesis & effects parameters via the Vector Joystick and the temposynchronized
Vector Envelope.

Structure
Single: only OSC1, Double: OSC1 and OSC2.
Double mode lets you layer two completely separate synth voices, each with their own velocity-switched
oscillator, dual filter, EGs, LFOs, etc.
Drums: One drum kit, Double Drums: Two drum kits.

Oscillators
Virtual Memory Technology (VMT) plays large samples directly from the internal SSD.
8 velocity zones per oscillator, with switching, crossfades and layering
Each zone can play mono or stereo Multisamples or Wave Sequences

Filters
Two multi-mode filters per voices (low-pass, high-pass, band-pass and band-reject),
Four-mode filter routings (single, serial, parallel and 24dB mode)

Driver
Per voice non-linear driver and low boost circuit

EQ
Three bands, with sweep-able mid

Modulation
Three envelope generators, two LFOs per voice, common LFO, four key tracking generators, AMS
(Alternate Modulation Source), two AMS mixers

EXi Program Common

Advanced Vector Synthesis
Control oscillator volumes and synthesis & effects parameters via the Vector Joystick and the temposynchronized
Vector Envelope.

Modulation
Common Step Sequencer, AMS (Alternate Modulation Source), Common LFO, 2 Key Tracking Generators

EQ
Three bands, with sweep-able mid

AL-1 Program
Oscillators
Ultra-low-aliasing oscillators
OSC1, OSC2, Sub-oscillator and noise generator; ring modulation, FM and Sync

Audio Input
External audio can be processed through the ring modulator, filter, driver, amp, and EQ

Filters
Two multi-mode filters (low-pass, high-pass, band-pass and band-reject) with four types of filter routings
(single, serial, parallel and 24dB mode),
Multi Filter mode (only Filter-A; modulatable mix of Low Pass, High Pass, Band Pass, and dry input, for
creating a wide variety of unique filter types and effects)

Driver
Per-voice non-linear driver and low boost circuit

Modulation
Five Envelope generators, four per-voice LFOs, two AMS Mixers; Per-voice Step Sequencer.

CX-3 Program

Tonewheel Organ Modeling
Phase-synchronous tonewheels (clean and vintage modes), percussion, key click, wheel brake

EX Mode

Internal Effects
Rotary speaker, vibrato/chorus, amp modeling with overdrive, 3-band EQ

Drawbar Control
Controlled via nine front-panel sliders (via Tone Adjust)

Split
Upper, Lower (even in EX mode)

Modulation
Two AMS mixers

STR-1 Program
Physically Modelled String
Includes physically modelled damping, decay, dispersion, nonlinearity, harmonics, dual pickups, and
more.
Most string parameters can be controlled in realtime.

String Excitation
Three independent excitation sources can be used simultaneously: Pluck, Noise, and PCM.
16 preset "pluck" types, with modulatable width and randomization. Noise generator with saturation and
dedicated low pass filter
PCM Oscillator:
Korg's ultra-low-aliasing technology, as introduced in the HD-1;
4 velocity zones per oscillator;
Uses any mono Multisamples, including ROM, EXs, User Sample Bank, or Sampling Mode.
Supports Virtual Memory.
Excitation Filter:
Dedicated 2-pole multimode filter for shaping the string excitation.
Filter can be enabled/disabled separately for each excitation source.
Low Pass, High Pass, Band Pass, and Band Reject modes

Audio Input and Feedback
Run real-time audio through the string, including feedback through effects.
Modeled feedback includes modulate-able instrument-to-amp distance and orientation.

Filters
Dual multi-mode filters per voice; Single, Serial, Parallel (with split stereo output), and 24dB (4-pole)
configurations. Low Pass, High Pass, Band Pass, and Band Reject modes
Multi Filter Mode (Filter A only).
Modulatable mix of Low Pass, High Pass, Band Pass, and dry input, for creating a wide variety of unique
filter types and effects

Modulation
5 Envelopes, 4 per-voice LFOs, 2 Key Track generators, String Tracking generators, 4 AMS Mixers.

MOD-7 Program
Waveshaping VPM Synthesizer
Combines Variable Phase Modulation (VPM), Waveshaping ring modulation, PCM sample playback, and
subtractive synthesis; Able to convert-load SYX files.

Oscillators
6 VPM/Waveshaper/Ring Modulation Oscillators:
Phase and modulatable pitch per oscillator.
101 Waveshaper tables plus modulatable Drive and OXset.
Use as oscillators, or as Waveshapers or Ring Modulators for other signals.
PCM Oscillator:
Korg's ultra-low-aliasing technology, as introduced in the HD-1.
4 velocity zones per oscillator.
Uses any mono Multisamples, including ROM, EXs, User Sample Bank, or Sampling Mode. Supports
Virtual Memory.

Audio input
Run real-time audio through the VPM Oscillators and filters.

Filters
Dual multi-mode filters per voice. (Low Pass, High Pass, Band Pass, and Band Reject modes)
Two types of filter looping (Parallel and 24 dB "4-Pole")
Multi Filter mode (Filter A only):
Modulatable mix of Low Pass, High Pass, Band Pass, and dry input, for creating a wide variety of unique
filter types and effects

Patch Panel
Supports both preset algorithm (78 types) selection and free patching.
Three 2-in, 1-out mixers for scaling and merging audio, fully modulatable, with phase inversion.
Main 6-input stereo mixer, with modulatable pan and volume, plus phase inversion

Modulation
10 Envelopes, 4 per-voice LFOs, 9 Key Tracking generators, Per-voice Step Sequencer, 4 standard AMS
Mixers plus 4 simple AMS Mixers.

MS-20EX Program
Oscillators
Ultra-low-aliasing oscillators; VCO1, VCO2, Ring Mod, Pink and White Noise Generator

Audio Input
Run real-time audio through the synthesis engine and ESP (External Signal Processor)

Filters
12dB/octave High Pass and Low Pass self-resonant filters
ESP section:
24dB/octave Low Cut and High Cut filters, available per voice.Patch PanelPatchable audio and
modulation, at audio rates

PolysixEX Program
Oscillators
VCO:
Saw, Pulse, PWM
Sub Oscillator:
OX, 1 octave below, 2 octaves below

Filter
24dB (4-Pole) Octave Low Pass self-resonant filter

Effects
Integrated Polysix Chorus, Phaser, and Ensemble

Arpeggiator
Integrated MIDI-synced arpeggiator, with adjustable Range, Mode, and Latch

Modulation
Polysix: Original ADSR EG and MG (with MIDI sync).
KRONOS: 2 additional multi-stage Envelopes, 2 additional per-voice LFOs, and 4 AMS Mixers.

Combination
Number of Timbres, Master Keyboard Functionality
16 Maximum
Keyboard and velocity splits, layers, and crossfades of up to 16 Programs and/or external MIDI Devices
The tone adjust parameter function lets you modify program settings, and the master keyboard function
lets you control external MIDI devices

Advanced Vector Synthesis
Control oscillator volumes and synthesis & effects parameters via the Vector Joystick and the temposynchronized
Vector Envelope.

Drumkit
System
Assignable stereo/mono samples with 8 velocity zones per oscillator (with crossfade functions)

Number of Programs/Combinations/Drum kits
User Memory Programs
2,560 (2,176 [1,152 HD-1+1,024 EXi] come preloaded)

User Memory Combinations
1,792 (768 come preloaded)
User Memory Drum Kits
264 (80 come preloaded)
256 GM Level2 preset programs + 9 GM Level 2 drum preset programs

Set List
Number of Set Lists/Slots
128 set lists, 128 slots per set list
Each set list provides a 9-band graphic EQ, and a Tone Adjust function that allows program settings to be
adjusted.
Transpose setting.
Hold Time setting of Smooth Sound Transition (SST) supported for each slot.

Sampling
System
Open Sampling System (resampling, In-Track sampling)

Bit Depth/Sampling Frequency
RAM: 16-bit/48 kHz stereo/mono sampling
DISK: 16 or 24-bit/48 kHz

Sampling Time
RAM: Depends on the amount of available PCM RAM
DISK: Maximum 80 minutes stereo (879MB: 16bit)

Sample Locations
16,000 samples/4,000 multisamples (128 indexes per multisample)

Ripping
Direct sampling (ripping) from audio CD (CD-DA)

Formats
Korg format, AKAI S1000/S3000 data (with advanced Program parameter conversion); SoundFont 2.0,
AIFF, and WAVE formats

Editing
Time Stretch, Time Slice, Crossfade Loop, and other standard editing features.

Effects
Insert Effects
12
Stereo in / stereo out

Master Effects
2
Stereo in / stereo out

Total Effects
2
Stereo in / stereo out
Timbre EQ
One 3-band EQ for each timbre/track

Effect Types
197

Modulation
Dynamic Modulation and Common LFO

Effects Control Busses
Stereo side-chaining for compressors, gates, vocoders, etc.

Effect Presets
Total 783 preset, Maximum 32 per 1 eXect (Preset User)

KARMA
KARMA Modules
One module in Program mode, four modules in Combination and Sequencer modes

Generated Effects (GE)
2,048 presets, 1,536 Users (96 come Preload)

Controllers
On/OX, Latch, Chord, Assign, Module, Control, KARMA Realtime Control Sliders [1] – [8], KARMA Scenes
[1] – [8], KARMA Switches [1] – [8], KARMA Wave-Sequencing, GE Sub Category, Freeze Randomize, Time
Signature Control, Tempo Synchronize, Auto RTC (Real Time Control) setup

Drum Track Patterns
718 preset (common with the preset patterns of the MIDI sequencer)
1,000 user patterns
Patterns created in Sequencer mode can be converted to drum track user patterns.
Trigger Mode/Sync/Zone settings can be specified.

Sequencer/HDR
Tracks
16-track MIDI sequencer + 16-track hard disk recorder + 1 master track.
Number of Songs
200 songs

Resolution
1/480

Tempo
40.00 – 300.00 (1/100 BPM resolution)

Maximum Memory
400,000 MIDI events or 300,000 audio events

MIDI Tracks
16 tracks plus the master track
718 preset/100 user patterns (per song)
18 preset/16 user template songs,

Audio Tracks
16-track playback, 4-track simultaneous recording, WAV file format 16bit/24bit.

Other Functions
RPPR (Realtime Pattern Play and Record) (1 Pattern set per song), Auto Song Setup function

General
Disk Mode
Load, save, utility, audio CD burning, audio CD playback, data filer function (save/load MIDI System
Exclusive data), CD-R/RW (UDF format read/write), ISO9660 Level 1.

Controllers
Vector joystick, joystick, ribbon controller, switches 1 & 2
Control Surface:
Control Assign Switches:
Assigns the Control Surface to Timber/Track, Audio, External, Realtime Knobs/KARMA,
Tone Adjust/EQ
Mixer Knobs Switch:
Assigns the Mixer Knobs to either Channel Strip or Individual Pan, Reset Control Switch, Solo Switch,
Knobs 1-8, Switches 1-8(Upper Row), Switches 1-8 (Lower Row), Sliders 1-8, Master Slider
KARMA Control:
On/OX, Latch, Module Control
DRUM TRACK:
On/OX

Display
TouchView graphical user interface, 8 inch color TFT, SVGA (800x600 dots), adjustable brightness

Outputs
== Analog ==
(MAIN) L/MONO, R:
1/4" TRS Balanced
Output Impedance: 350 Ω Stereo; 175 Ω Mono (L/MONO Only),
Nominal Level: +4.0 dBu,
Maximum Level: +16.0 dBu (when load impedance is 600 Ω or greater)
MAIN VOLUME knob controls only AUDIO OUTPUT (MAIN) L/MONO and R
Individual 1-4:
1/4" TRS Balanced
Output Impedance: 350 Ω Stereo; 175 Ω Mono,
Nominal Level: +4.0 dBu,
Maximum Level: +16.0 dBu (when load impedance is 600 Ω or greater)
Headphones:
1/4" stereo phone jack, Output impedance: 33 Ω, Maximum Level: 60+60 mW (when load impedance is
33 Ω),
MAIN VOLUME knob (link with AUDIO OUTPUT (MAIN))
== Digital ==
S/P DIF:
Optical, 24-bit, IEC60958, EIAJCP-1201, Sample Rate: 48 kHz, (the same signals as L/MONO, R)
Digital output of the same signals as AUDIO OUTPUT (MAIN) L/MONO and R
USB-B:
24-bit, Sample Rate: 48 kHz, 2 channels
(Digital output of the same signals as AUDIO OUTPUT (MAIN) L/MONO and R)

Inputs
== Analog ==
Audio Inputs 1 and 2:
1/4" TRS Balanced
MIC/LINE input level switches, LEVEL knobs
Input Impedance: 10 kΩ
Nominal Level: LINE
+4 dBu (LEVEL knob = min), –36 dBu (LEVEL knob = max)
Nominal Level: MIC
–22 dBu (LEVEL knob = min), –62 dBu (LEVEL knob = max)
Maximum Level: LINE
+16 dBu (LEVEL knob = min), –24 dBu (LEVEL knob = max)
Maximum Level: MIC
-10 dBu (LEVEL knob = min), –50 dBu (LEVEL knob = max)
Source Impedance: 600 Ω
Signal to noise ratio: 95 dB (typical)
Dynamic range: 95 dB (typical)
Crosstalk: 95 dB, at 1 kHz (typical)
== Digital ==
S/P DIF:
Optical, 24-bit, IEC60958, EIAJCP-1201, Sample Rate: 48 kHz
USB-B:
24-bit, Sample Rate: 48 kHz, 2 channels

Control Inputs
Damper pedal (half damper supported), assignable switch, assignable pedal

MIDI
In, Out, Thru

USB*5
USB A (TYPE A) x 2, For connection to external USB devices (QWERTY keyboards, MIDI controllers,
ethernet adaptors, and storage)
USB B (TYPE B) x 1, MIDI/audio interface
MIDI: 1 (16 channel) input / 1 (16 channel) output
Audio: 2 channel input / 2 channel output
*5 USB high-speed ports (supports 480Mbps)

Disk Drives
120 GB SSD (2.5")

Power Consumption
40W

Dimensions(W x D x H)
61 key: 1,064 x 363 x 134 mm / 41.89" x 14.29" x 5.28"
73 key: 1,245 x 370 x 148 mm / 49/02" x 14.57" x 5.83"
88 key: 1,457 x 370 x 148 mm / 57.36" x 14.57" x 5.83"

Weight
61 key: 14.2 kg / 31.31 lbs
73 key: 20.4 kg / 44.97 lbs
88 key: 23.4 kg / 51.59 lbs

Accessories
AC cord

Principal Specifications
Frequency Response
20Hz-22kHz, +/-1.0dB, 10k Ω load
THD+N
20Hz-22kHz, 0.01%, 10k Ω load (typical)
S/N
95dB (typical)

Dynamic Range
95dB (typical)

Crosstalk
95dB, at 1kHz (typical)

* Specifications and appearance are subject to change without notice.

* All product names and company names are the trademarks or registered trademarks of their
respective owners.