KORG is re-releasing its flagship Music Workstation, KRONOS, with the KRONOS 3-73, a model that incorporates all the technical features of its predecessor while introducing significant hardware and software updates such as: a new, faster, quieter motherboard without a cooling fan, which guarantees greater system speed and a boot time of just 40 seconds. Additionally, it features a larger internal SSD, new sound resources, and an attractive, elegant, and professional black Look.

The return of the ultimate icon

Since its debut in 2011, KRONOS quickly gained the approval of musicians worldwide for its tonality and advanced performance. This instrument has evolved over time with various hardware and software updates, driven by feedback from musicians who successfully used it on the most prestigious stages and studios worldwide, thus setting the industry standard. Now, by popular demand, this Top Workstation is once again available with the KRONOS 3-73 model, further renewed and refined in both hardware and software.

KRONOS 3-73 notable features

• New fast motherboard without cooling fan


• Significantly reduced boot times, only 40 seconds


• 256 new Programs


• Increased internal SSD size from 60 to 120GB


• Improved Display functionality


• New elegant black look with real wood side panels


• Control surface and switches as per previous series

The new sound resources of KRONOS 3-73

To expand the tonal versatility of KRONOS 3-73, 256 Programs have been added, developed in collaboration with a team of world-renowned designers, including the best of their creations, such as: Italian Grand, a renowned grand piano with physically modeled string resonance, or the famous classic electric piano Tine EP I Early, plus FM digital pianos, synth Pads, Leads, and much more – a sound palette that spans every genre and style.

Exclusive Programs and Combis

KRONOS 3-73 features the most representative sounds from the original KRONOS libraries.

• KRS-08 Best of TRITON: a collection of 128 Programs from one of KORG's most successful synthesizers.


• KRS-04 Pro Splits and Layers: a series of Split and Layer Programs already optimized for real-time performance.


• KRS-05 Combination Ensemble: Combis suitable for performances with a band including: brass, strings, and synthesizers.


• KRS-06 and KRS-06B CX-3 Signature Sounds: created through a collaboration between KORG and renowned organists, featuring 256 carefully selected CX-3 organ Programs, ready to play. This sound collection ensures every musician has access to the best sounds KRONOS3 can generate.

Controlling KRONOS 3-73

The control system of KRONOS 3-73 has been meticulously refined across various versions to provide musicians with an intuitive and fast user interface. Its layout features a wide control surface that includes several physical controls such as: eight knobs, nine sliders, and a series of switches to directly interact with the instrument, allowing the musician or producer to focus exclusively on their performance. The heart of the user interface is the large, fast, and responsive TouchView Display, which offers immediate access to navigation and parameter editing, providing an environment that ensures immediate usability for those familiar with KRONOS.

Renewed Design and Look

The design of KRONOS 3-73 features substantial updates, such as a sturdy and durable powder-coated metal body that also provides excellent tactile feel, and sophisticated side panels made of genuine black wood with its natural grain, adding an elegant touch. These aesthetic improvements ensure recognition and public attention.

Speed and precision

KRONOS 3-73 achieves new levels of performance thanks to significantly improved boot-up times. With a redesigned system architecture, the boot time is now 60% faster compared to previous models, drastically reducing downtime upon power-on. This way, KRONOS 3 ensures a higher degree of responsiveness and interaction.

KRONOS 3-73 built to last

Since its introduction in 2011, every KRONOS model has undergone systematic updates, ensuring its performance growth and optimization, as well as compatibility and continuity between various series. KORG's dedication to long-term support guarantees that all generations of KRONOS can use dedicated sound libraries, preserving investment and allowing for continuous instrument evolution.

• KORG will release a Soundpack in the second half of 2025 for owners of previous KRONOS and NAUTILUS models to load KRONOS 3 sounds into their instruments, allowing them to also use this upgrade.


• *Two types of preloaded data are available for the new model to support both KRONOS 1/X and KRONOS 2, in both Program orders.


• ** Austrian Piano, Italian Piano, etc., not included in the first models, can be used by purchasing the relevant sound libraries.

SGX-2 Sound Engine dedicated to grand pianos

This generator, dedicated to acoustic pianos, produces high-quality sounds based on Stereo Samples without loops, sampled for each key on valuable instruments with their natural decay, and the ability to customize each timbre according to specific needs. KRONOS 3-73 on SGX-2 provides four grand pianos with distinct and peculiar characters: German Grand, Japanese Grand, Berlin Grand, and Italian Grand, all very dynamic, with a modern and expressive timbre, also producing typical acoustic piano phenomena such as Sympathetic String Resonance, key release, tonal variation caused by lid opening, and the "una corda" effect (*)

(*) Not included in the Italian Grand.

The sound library of KRONOS 3-73

KRONOS possesses a tonal palette composed of thousands of sounds, created using various synthesis engines and drawing from approximately 21 GB of internal waveforms, meticulously developed by the KORG Sound Designer team. The 120 GB internal SSD can host User Samples, audio recording files, and Sound Library data.

* SSD capacity is subject to change without notice.

Multi-Synthesis Generation

Each of the sound generators in KRONOS 3-73 can be considered an independent synthesizer employing the most advanced digital technology. Synthesis is complemented by real-time parameter control via the extensive control surface and the processing of high-quality and effective integrated effects.

Set List Mode

With the Set Lists of KRONOS 3-73, it's possible to organize the musical resources needed for a concert or session according to our needs. Activating this operating mode, the display shows 16 color-coded touch-screen slots, which, when touched, can recall the assigned Program, Combi, or Sequence, appropriately setting some parameters such as: volume, transpose, title, or performance notes like: "Sing on the chorus", "Transpose by half a tone", "Wait for the sax solo", etc., with the possibility to change the color, edit the text by varying its use with a PC keyboard connected to the USB port, thus simplifying the entry of text and numbers. There are 128 Set Lists with 128 slots each.

The Sequencer of KRONOS 3-73

Like all workstations, KRONOS 3-73 includes a high-performance Sequencer/Recorder with 16 MIDI tracks + 16 Audio Full Editing, allowing for quick storage of ideas or entire musical pieces. The audio recorder can record up to 4 tracks simultaneously (16/24-bit linear at 48 kHz), with the ability to also acquire tracks already recorded on KRONOS 3-73 complete with effects, placing the resulting audio file in one of the sequencer's tracks. Editing functions such as: Mixer Automation, Copy, Paste, Normalize, and some sophisticated tools that facilitate the composition or arrangement process such as KARMA or Drum Tracks are also present, shortening the creation of entire pieces.

The sequencer's composition tools

In addition to MIDI and audio tracks, the KRONOS 3-73 Sequencer offers the ideal tools to transform your musical ideas into a complete composition, using real-time interactive techniques not available or difficult to use on a computer-based system.

KARMA: this algorithmic function generates elaborate musical phrases, grooves, and backing tracks, based on notes and chords played in real-time, and on the movement of knobs, sliders, and switches. KARMA also allows Wave-Sequencing, Note Mapping, and 8 different scenes for each Layer, expanding performance possibilities in Live settings.

Drum Tracks: Automatically producing rhythmic patterns, Drum Tracks can assist in various situations, such as during practice or composition, or become part of a musical piece or arrangement. They are capable of executing complete percussive performances with all the nuances of a real drummer, thus going beyond the role of a simple Drum Machine.

Open Sampling System

KRONOS 3-73 can sample an external audio source or resample its own performance. The User Sample area allows for the creation of personal sample libraries by utilizing the internal SSD, and also importing them via USB in the most common formats and modifying them through the internal Sample Editor. This allows you to center your music production system exclusively on KRONOS 3 without the need for other devices.

Effects Processor

KRONOS 3-73 possesses a powerful effects processor capable of processing any sound source, both internal and external, generating up to 12 Insert effects applicable to individual timbres in a Program, on the Timbre/Track of a Combination, or of the Sequencer; 2 Master effects individually adjustable with sends, and 2 Total effects as a global sound processing stage. Furthermore, on each single timbre of a Combi or a Sequencer Song (MIDI or Audio), a three-band equalizer is available for further tonal control.

Color TouchView Display

The nerve center of the KRONOS 3-73 user interface is the large eight-inch (800 x 600 pixel) SVGA color TouchView display, which allows for navigation between pages, selection, and precise control of parameters directly with the touch of a finger. The display also hosts the Search function, useful for quickly finding sounds based on characters contained in their names.

Control surfaces

In addition to the parameters accessible from the TouchView Display, KRONOS 3-73 also offers a variety of physical controls useful for both Performance and navigation: a four-axis Joystick, Ribbon Controller, two assignable buttons, and a Vector Joystick. Above the keyboard, there are nine sliders, eight rotary controls, and various buttons that interact with the sound generator's parameters. On the rear panel, there are inputs for pedals: Damper with half-pedal and two assignable pedals, one continuous and the other a switch. Furthermore, on KRONOS 3-73, any type of USB/MIDI Class Compliant controller, such as KORG nanoPAD, nanoPAD2, or padKONTROL, can be directly connected to the USB port. In this way, their pads 1 to 8 are automatically mapped to the virtual ones on KRONOS to play percussive sounds, trigger, or change chords in Chord mode.

SMOOTH SOUND TRANSITION seamless sound transitions

This function, made possible by the high computational capacity of KRONOS 3-73, allows for the selection of different resources and operating modes (Program, Combi, Song), ensuring continuous transitions of sounds and effects without interruptions. This characteristic is highly appreciated and praised by many artists and musicians because it allows for a performance without annoying blackouts between the various musical parts used during a performance.

Weighted RH3 Weighted Hammer Action Keyboard

KRONOS 3-73 adopts the KORG RH-3 Real Weighted Hammer Action keybed, offering a solid and consistent response with a gradual weighting mechanism that reproduces the difference in hammer mass between the bass and treble regions, typical of an acoustic piano.

Additional Sound Libraries for KRONOS 3-73

KRONOS Sound Libraries are collections of high-quality Programs and Samples continuously published since its introduction, with a catalog of over 300 titles featuring a diverse tonal selection compared to factory Programs. These can be purchased and used with all KRONOS models. These sound resources are distributed directly by KORG on its Shop (click here), where you can search for titles by instrument: Piano, Strings, Organ, Bass, etc., publication year, price range, and developer name. Two types of libraries are available: EXs, which include new PCM data, and KRS, which contains only Program data. Artist Signature libraries also offer valuable Programs created or used by top musicians and artists in their most famous hits or prestigious concerts. Demo sounds and videos are also available for these libraries, allowing you to evaluate their content. For users who own multiple KRONOS units, the library license allows sharing each title across a maximum of three units.

• ** The Demo version has a usage limitation: during playback, a cyclical volume fluctuation occurs.


• ** The total of 3 units can also include NAUTILUS.

KRONOS 3-73 Technical Specifications

System: KRONOS System Version 3.2

Keyboard: 73-key RH3 (Real Weighted Hammer Action 3)

Sound Generator: 9 synthesis types

• 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 effects are active simultaneously (e.g., more than 14 O-Verbs), polyphony may be slightly reduced.


• *2: One part of KRONOS's multicore processor is dedicated to voice generation, while a separate part is dedicated to effect generation. KRONOS dynamically allocates voice processing power between the two engines as needed. The stated maximum voice counts apply when 100% of the voice processing power is dedicated 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)

Built-in PCM Expansion 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: Approximately 2GB *4

*4: The memory available for sampling changes depending on the use of PCM expansion libraries and User Sample banks. Approximately 760 MB are available at factory shipment (when loading the “PRELOAD.KSC” file).

Wave Sequences: 598 User memory, 207 Preload, Stereo Multisample support, single note synchronization and time-based settings.

SGX-2 Program Premium Piano

Virtual Memory Technology (VMT) streams large samples directly from the internal SSD. Stereo sampling on every key, up to 12 velocity levels, no loops, damper resonance and mechanical noise reproduction, string resonance reproduction, “Una Corda” sample support.

PCM

• EXs6:SGX-1 German D Piano


• EXs7:SGX-1 Japanese C Piano


• EXs12:SGX-1 Austrian D Piano (Optional Sound Libraries)


• 8 velocity levels, no Una Corda


• EXs17:Berlin D Piano


• 12 velocity levels, Una Corda samples

Piano Types: 80 (With factory settings, the 16 varieties of EXs12 SGX-1 Austrian D Piano do not produce sounds. 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 latest installation of EXs21 or EXs22).

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

EP-1 Program MDS Electric Piano

• Reed and tine electric pianos with 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


• Control Panel: Tine Type, Preamp Volume, Tone (Treble, Bass), Vibrate (On/Off, Intensity, Speed), Amp/Cabinet (On/Off, Drive)*5, Reed Type, Preamp Volume, Tone (Treble, Bass), Vibrate (Intensity, Speed), Amp/Cabinet (On/Off, 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 and effect parameters via the Vector Joystick and time-synchronized Vector Envelope.


• Structures: Single: OSC1 only, Double: OSC1 and OSC2. - Double mode allows layering of two completely separate synthesizer voices, each with its own velocity-switched oscillator, dual filter, EG, LFO, etc. Drums: One drum kit, Double Drums: Two drum kits.


• Oscillators: Virtual Memory Technology (VMT) streams 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 multimode filters per voice (low-pass, high-pass, band-pass, and band-reject), four filter routing modes: single, serial, parallel, and 24dB. Driver - Nonlinear driver per voice and Low Boost-EQ circuit: Three bands, with sweepable mids.


• Modulations: 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 and effect parameters via the Vector joystick and time-synchronized Vector Envelope.


• Modulations: Common Step Sequencer, AMS (Alternate Modulation Source), common LFO, 2 Key Tracking Generators, EQ Three bands, with sweepable mids.

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, amplifier, and equalizer.


• Filters: Two multimode filters: low-pass, high-pass, band-pass, and band-reject, with four filter routing types: single, serial, parallel, and 24dB. Multi-filter mode: filter-A only, modulatable mix of low-pass, high-pass, band-pass, and dry input, to create a wide variety of unique filter types and effects. Driver - Nonlinear driver per voice and low boost circuit.


• Modulations: Five envelope generators, four LFOs per voice, two AMS mixers; Step Sequencer per voice.

CX-3 Program

• Electromagnetic (tonewheel) organ modeling; Phase-synchronized tonewheels (clean and vintage modes), percussion, key click, wheel brake.


• EX Mode: Four additional, user-specified drawbars, and expanded percussion.


• Internal Effects: Rotary speaker, vibrato/chorus, amplifier modeling with overdrive, 3-band EQ.


• Drawbar Control: Via the nine front panel sliders (via Tone Adjust).


• Split: Upper, lower (also in EX mode).


• Modulations: Two AMS mixers.

STR-1 Program

• Physically modeled strings: Includes damping, decay, dispersion, non-linearity, harmonics, dual pickups, and more. Most string parameters can be controlled in real time.


• String excitation: Three independent excitation sources can be used simultaneously: Pluck, Noise, and PCM. 16 preset “pluck” types, with modulatable amplitude and randomization. Noise generator with saturation and dedicated low-pass filter.


• PCM Oscillator: KORG low-aliasing technology, introduced in the HD-1;


• 4 velocity zones per oscillator; Uses any mono multisample, including ROM, EX, User Sample Bank, or Sample mode. Supports virtual memory.


• Excitation filter: Dedicated 2-pole multimode filter to shape string excitation. The filter can be enabled/disabled separately for each excitation source. Low-pass, high-pass, band-pass, and band-reject modes.


• Audio input and feedback: Reproduces real-time audio through the string, including feedback through effects. Modeled feedback includes modulatable distance and orientation between instrument and amplifier.


• Filters: Dual multimode filter 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, to create a wide variety of unique filter types and effects.


• Modulations: 5 envelopes, 4 LFOs per voice, 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 and load SYX files.


• Oscillators: 6 VPM/Waveshaper/Ring modulation oscillators: Modulatable phase and pitch for each oscillator. 101 Waveshaper tables plus modulatable Drive and Offset. Usable as oscillators or as Waveshapers or Ring modulators for other signals.


• PCM Oscillator: KORG ultra-low-aliasing technology, introduced in the HD-1. 4 velocity zones per oscillator. Uses any mono multisample, including ROM, EX, User Sample Bank, or Sampling mode. Supports virtual memory.


• Audio input: Process real-time audio through the VPM oscillators and filters.


• Filters: Dual multimode 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 filter, to create a wide variety of unique filter types and effects.


• Patch Panel: Supports both preset algorithm selection (78 types) and free patching.


• Three 2-input, 1-output mixers for scaling and mixing audio, fully modulatable, with phase inversion. 6-input main stereo mixer, with modulatable pan and volume, and phase inversion.


• Modulations: 10 envelopes, 4 LFOs per voice, 9 Key Tracking generators, Step Sequencer per voice, 4 standard AMS mixers plus 4 simple AMS mixers.

MS-20EX Program

• Oscillators: Low-aliasing oscillators; VCO1, VCO2, Ring Mod, pink and white noise generator.


• Audio Input: Processes real-time audio through the synthesis engines and ESP (External Signal Processor).


• Filters: Self-resonant 12 dB/octave high-pass and low-pass filters.


• ESP Section: 24 dB/octave Low Cut and High Cut filters, available per voice. Patch panel. Audio and modulation patchable at audio frequency.

Patch Points:

• Keyboard: Keyboard CV Out, Keyboard Trigger Out, VCO1+VCO2 CV In, VCO2 CV In


• VCO: VCO1+VCO2 External Frequency Control In, VCO1 Out, VCO2 Out


• VCF: External Signal In, External HP Filter Cutoff Frequency Control In, External LP Filter Cutoff Frequency Control In, HPF Out, LPF In, LPF Out


• VCO+VCF: Total External Modulation In


• VCA: External Initial Gain Control In, VCA In


• EG: EG1 Envelope Signal Normal Out, EG1 Envelope Signal Reverse Out, EG1+EG2 Trigger In, EG1 Trigger In, EG2 Envelope Signal Reverse Out


• MG: Triangle Out, Rectangle Out


• Noise Generator: Pink Noise Out, White Noise Out


• Sample and Hold: Clock Trigger In, Sample Signal In, S/H Out


• Modulation VCA: Control Voltage In, Signal In, Signal Out


• Manual Controller: Control Wheel Out, Momentary Switch


• ESP: Signal In, AMP Out, BPF In, BPF Out, F-V CV Out, Envelope Out, Trigger Out


• Others: EXi Audio In, Mixer 1 In, Mixer 1 Out, Mixer 2 In, Mixer 2 Out


• ESP (External Signal Processor) - Use input audio as trigger and/or CV source.


• Modulations: Original DAR (Delay, Attack, Release) and HADSR (Hold, Attack, Decay, Sustain, Release) EGs 1 and 2, Original MG (with MIDI sync), Sample-and-Hold, MVCA, KRONOS: 4 additional multi-stage envelopes, 4 additional LFOs per voice, and 4 AMS mixers.

PolysixEX Program

• Oscillators: VCO: Saw, Pulse, PWM - Sub Oscillator: Off, 1 octave lower, 2 octaves lower


• Filter: Self-resonant 24 dB per octave (4-pole) low-pass filter.


• Effects: Built-in Chorus, Phaser, and Ensemble.


• Arpeggiator: Built-in MIDI-synchronized arpeggiator, with adjustable Range, Mode, and Latch.


• Modulations: Polysix: Original ADSR EG and MG (with MIDI sync). KRONOS: 2 additional multi-stage envelopes, 2 additional LFOs per voice, and 4 AMS mixers.

Combi (Combination)

• Number of Timbres, Master Keyboard functions: 16 maximum


• Splits and velocity, layers and crossfades of up to 16 programs and/or external MIDI devices.


• Tone adjust function allows modification of program settings and Master Keyboard functions for controlling external MIDI devices.


• Advanced vector synthesis: Control oscillator volumes and synthesis and effect parameters via the Vector joystick and time-synchronized Vector Envelope.

Drumkit

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

Number of Programs/Combinations/Drum kits

• User Memory Programs: 2,560 (1,792 [896 HD-1+896 EXi] Preloaded)


• User Memory Combinations: 1,792 (512 preloaded)


• User Memory Drum Kits: 264 (78 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 offers a 9-band graphic EQ and a Tone Adjust function allowing adjustment of program settings: Transposition setting, Smooth Sound Transition (SST) Hold Time setting supported for each slot.

Sampling

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


• Resolution and Sampling Frequency - (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 (SSD): Maximum 80 minutes stereo (879MB: 16bit)


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


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


• Formats: KORG, AKAI S1000/S3000 data (with advanced program parameter conversion); SoundFont 2.0, AIFF, WAVE


• Editing: Time Stretch, Time Slice, Crossfade Loop, and other standard editing functions.

Effects

• Insert Effects: 12 Stereo in / stereo out - Master Effects: 2 Stereo in / stereo out - Total Effects: 2 Stereo in / stereo out


• Timbre EQ; A 3-band EQ for each timbre/track


• Effect Types: 197


• Modulations: Dynamic Modulation and Common LFO


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


• Effect Presets: 783 Total, Max. 32 per effect (User Preset)

KARMA

• KARMA Modules: One module in Program mode, four modules in Combi and Sequencer mode


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


• Controls: On/Off, 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 MIDI sequencer Preset Patterns), 1,000 user patterns. Patterns created in Sequencer mode can be converted to drum track user patterns. Trigger Mode/Sync/Zone settings can be determined.

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 Capacity: 400,000 MIDI events or 300,000 audio events


• MIDI Tracks: 16 + Master Track - 718 preset/100 user patterns (per song) - 18 preset/16 user template songs,


• Audio Tracks: 16-playback tracks, 4-simultaneous recording tracks, 16bit/24bit WAV formats.


• 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.


• Controls: Vector joystick, joystick, ribbon controller, switches 1 & 2

Control Surface:

• Control Assign Switches: Assign the control surface to Timber/Track, Audio, External, Realtime Knobs/KARMA, Tone/EQ adjustment


• Mixer Knobs Switch: Assign the mixer knobs to the 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 Controls: On/Off, Latch, Module Control


• DRUM TRACK: On/Off

Display: TouchView graphical 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 higher)


• The MAIN VOLUME knob controls only the AUDIO OUTPUTS (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 higher)

Headphones: 1/4” stereo phone jack, Output impedance: 33 Ω, maximum level: 60+60 mW (when load impedance is 33 Ω),

MAIN VOLUME knob (connected to AUDIO OUTPUT (MAIN))

= Digital =

• S/P DIF: Optical, 24-bit, IEC60958, EIAJCP-1201, sampling rate: 48 kHz, (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-pedaling supported), assignable switch, assignable pedal

MIDI: In, Out, Thru (DIN)

• USB*5 : USB A (TYPE A) x 2, for connecting to external USB devices (QWERTY keyboards, MIDI controllers, Ethernet adapters, and storage).


• USB B (TYPE B) x 1, MIDI/audio interface


• MIDI: 1 input (16 channels) / 1 output (16 channels)


• Audio: 2 input channels / 2 output channels


• *5 High-speed USB ports (supports 480 Mbps)

Disk Drive: 120 GB SSD (2.5")

Power Consumption: 40W

Dimensions (W x D x H) KRONOS 3-73 keys: 1,245 x 370 x 148 mm (49.02” x 14.57” x 5.83")

Weight KRONOS 3-73 keys: 20.4 kg / 44.97 lb

Included Accessories: AC cable, Quick Start Guide

Main Specifications

• Frequency Response: 20 Hz-22 kHz, +/-1.0 dB, 10 kΩ load


• THD+N: 20 Hz-22 kHz, 0.01%, 10 kΩ load (typical)


• S/N 95 dB (typical)


• Dynamic Range: 95 dB (typical)


• Crosstalk: 95 dB, at 1 kHz (typical)

* All product, company, and standard names are trademarks or registered trademarks of their respective holders.

* Product appearance and specifications are subject to change without notice.

* The color of the actual instrument may differ slightly from the image shown here.

* As natural wood is used in the side panels of this instrument, there will be individual differences in wood grain and figuring.

Details on KRONOS 3 - 73's Multi-Synthesis Generation System

Thanks to the advanced technology employed and the sophisticated dynamic voice allocation system, KRONOS can simultaneously use the nine integrated sound engines to produce very interesting tonal results.

SGX-2 (Premium Piano)

Provides the most globally appreciated concert grand pianos: German, Japanese, Berlin, and Italian Grand, all with loop-less stereo samples, sampled key by key with their natural decay, 12-level Velocity Switch, key releases, string resonance, and "una corda" pedal, to reproduce the finest details of a grand piano.

• String resonance: Reproduces the typical phenomenon of an acoustic piano achieved by pressing the Damper pedal and allowing all strings to resonate freely. Playing one or more keys then causes other strings to vibrate sympathetically due to resonance. The harmonics generated by the resonance can be displayed on the corresponding Edit screen.


• Una corda: The left pedal on a grand piano is the soft pedal. Its technical name is "Una corda". Normally, the piano hammer strikes all the strings associated with a given note, usually three or two. The Una Corda shifts the entire piano mechanism so that the hammer strikes only one string, producing a typical sound with a characteristic attenuated and mellow timbre. Italian Grand does not have Una Corda

EP-1 (MDS Electric Piano)

Accurately reproduces the timbres of six famous vintage electric pianos with tines and reeds, including the renowned Tine EP I Early. EP-1 uses MDS (Multi-Dimensional Synthesis) technology, which ensures smooth transitions between the dynamic levels of multi-samples, also allowing control over "virtual" sound tines and other elements such as hammer mass. In addition, it includes simulations of the most typical amplifiers, speakers, and vintage effects.

CX-3 (Electromagnetic Organ)

Accurately simulates the typical elements of an electromagnetic organ, including tube amplifiers, characteristic effects such as Vibrato/Chorus, Rotary Speaker, Fold-back, Leakage, and tonewheel noise. The 9 sliders on the panel allow control via the Drawbars as on the original models. The KRS-06 and 06B Sound Libraries, with a total of 256 Programs featuring a careful selection of electromagnetic organs, are also included in the User Memory of KRONOS 3-73.

HD-1 (High-Definition Synthesizer) - PCM, Sampling, and Wave Sequencing

HD-1 is based on PCM sampling, accessing a large Sample Library residing on the internal SSD with low-aliasing KORG oscillators, multimode filters with resonance, envelopes, and LFOs (Low Frequency Oscillators). HD-1 produces sounds typical of every musical style and repertoire: from orchestral to classic Rock; from Hip Hop to Funk, this wide assortment allows the use of KRONOS 3-73 in many musical situations.

MS-20EX (Legacy Analog Collection) Analog Physical Modeling Generator

The vintage KORG MS-20 semi-modular monophonic synth was introduced in 1978, quickly gaining widespread acclaim thanks to the characteristic timbre of its oscillators, aggressive filters, extensive patching capabilities, and sound design possibilities. MS-20EX accurately reproduces the tonal character of the MS-20 through KORG's proprietary CMT (Component Modeling Technology), which allows for extensive programming options such as filter modulation with audio frequency oscillators, transforming audio inputs into control signals, controlling virtual knobs with modulation sources like additional envelopes, LFOs, and real-time controls, all with ample polyphonic articulation.

PolysixEX (Legacy Analog Collection) Analog Physical Modeling Generator

The Polysix, a 6-voice analog polyphonic synth with programmable memories, appeared in 1981 with an apparently very simple structure featuring a single oscillator and sub-oscillator, a four-pole filter, LFO, envelopes, an effective Chorus/Ensemble, and an integrated arpeggiator. It was capable of generating very effective and iconic sounds like Strings or Pads. PolysixEX can accurately simulate these with high polyphonic capability and greater synthesis possibilities.

AL-1 (Analog Synthesizer) - Analog Synthesis Generator for Physical Models

It features low-aliasing virtual oscillators that recreate the same impact as analog synthesizers, complemented by multimode filters with resonance and typical modulation controls to obtain classic analog sounds or hybrid sounds of great tonal interest.

MOD-7 (Waveshaping VPM Synthesizer) - VPM/Waveshaping/PCM Sound Generator

Combines various synthesis techniques: Variable Phase Modulation (VPM), Wave-Shaping, Ring Modulation, Sampling, subtractive synthesis, with a complex patching system worthy of a great modular synth. It produces sounds ranging from classic FM synthesis (bells, basses, electric pianos, etc.), with the ability to import sounds directly from vintage DX series synths; to the production of highly articulated and complex soundscapes.

STR-1 (Plucked Strings) - Physical Modeling Generation

Physically models plucked and struck string instruments with advanced proprietary technology, producing very interesting timbres with dynamic-timbral nuances extremely difficult to reproduce with other systems. STR-1 can also generate sounds that obey the laws of physics but do not exist in reality, such as playing the harmonics of a metal bar struck by a piano hammer, singing into a guitar string, processing Samples and audio signals through physical models, including the returns of KRONOS 3's own effects.