[System]
System: KRONOS
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-1 Premium Piano (Acoustic Piano)
EP-1 MDS Electric Piano (Electric Piano)
HD-1 High Definition Synthesizer (PCM Virtual Memory Technology)
AL-1 Analog Synthesizer (Analog Modeling)
CX-3 Tonewheel Organ (Tonewheel Organ Modeling)
STR-1 Plucked String (Physical Modeling)
MOD-7 Waveshaping VPM Synthesizer (VPM Synthesis)
MS-20EX (CMT Analog Modeling)
PolysixEX (CMT Analog Modeling)

Maximum Polyphony*1*2:
SGX-1: 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 Maximum polyphony depends on the kind of synthesis engines and the number of effects being used.
*2 KRONOS dynamically allocates voices to multiple synthesis engines when they are used simultaneously.
*3 100 dual-stereo notes (It corresponds to 400 voices in the maximum.)

Number of Programs/Combinations/Drumkits:
1,664 user memory programs
(1510 or more [760 or more HD-1+750 or more EXi] come preloaded)
1,792 user memory combinations
(448 or more come preloaded)
152 user memory drumkits
(77 or more come preloaded)
256 GM Level2 preset programs+ 9 GM Level2 drum preset programs

Preset PCM:
314 MB (ROM 1,505 multisamples, 1388 drum samples)
Build-in Expansion PCM Libraries:
EXs1 - ROM Expansion
EXs2 - Concert Grand Piano
EXs3 - Brass & Woodwinds
EXs4 - Vintage Keyboards
EXs5 - ROM Expansion 2
EXs6 - SGX-1 German D Piano
EXs7 - SGX-1 Japanese C Piano
EXs8 - Rock Ambience Drums
EXs9 – Jazz Ambience Drums
Capacity of PCM RAM:
Approx. 1GB*4
*4 The memory available for RAM samples will change based on the use of Expansion PCM libraries.
About 273MB is available when shipped from the factory (when loading the file named “PRELOAD.KSC”).
Wave Sequences:
374 user memory, 160 or more preload

[SGX-1 Program]
Premium Piano:
PCM:
EXs6 - SGX-1 German D Piano; EXs7 - SGX-1 Japanese C Piano
Piano Type:
32 or more
Oscillator Control:
Damper Resonance, Damper Noise, Mechanical Noise, Note Release

[EP-1 Program]
MDS Electric Piano:
Electric Piano Model Types: 6
Tine EP I, Tine EP II, Tone EP V, Tine EP DMP, Reed EP200, Reed EP200A
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/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
*5 Each electric piano type has own amp/cabinet character.
Effect Types: 9
Small Phase, Orange Phase, Clack 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 tempo-synchronized 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.
Two completely separate drumkits.
Oscillators:
VMT (Virtual Memory Technology) supported.
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 sweepable 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 tempo-synchronized 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:
OSC1, OSC2, Sub-oscillator and noise generator; ring modulation, FM and Sync
Audio Input:
Run real-time audio through the synthesis engine
Filters:
Two multi-mode filter (low-pass, high-pass, band-pass and band-reject) with four types of filter routings (single, serial, parallel and 24dB mode), MultiFilter 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:
Four additional, user-specified drawbars, and expanded percussion.
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 Modeled String:
Includes physically modeled damping, decay, dispersion, nonlinearity, harmonics, dual pickups, and more
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 lowpass filter
PCM Oscillator:
Korg’s ultra-low-aliasing technology, as introduced in the HD-1; 4 velocity zones per oscillator; Uses any mono ROM, EXs, or RAM multisamples; PCM can either be used as an excitation signal, or layered with the output of the string.
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, 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 Offset; 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 ROM, EXs, or RAM multisamples; PCM can be used as an FM modulator and/or layered with the VPM Oscillators. Noise generator with saturation and dedicated low pass filter.
Audio input:
Run real-time audio through the VPM Oscillators and filters.
Filters:
Dual multi-mode filters per voice. Parallel and 24 dB (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
Patch Panel:
Supports both 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 Panel:
Patchable audio and modulation, at audio rates
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 incoming audio as a trigger and/or CV source.
Modulation:
Original DAR and HADSR EGs 1 & 2, original MG (with MIDI sync), Sample-and- Hold, MVCA; 4 additional multi-stage Envelopes, 4 additional per-voice LFOs, and 4 AMS Mixers

[PolysixEX Program]
Oscillators:
VCO:
Saw, Pulse, PWM
Sub Oscillator:
Off, 1 octave below, 2 octaves below
Filter:
24dB/octave Low Pass self-resonant filter
Effects:
Integrated Polysix Chorus, Phase, and Ensemble
Arpeggiator:
Integrated MIDI-synced arpeggiator, with adjustable Range, Mode, and Latch
Modulation:
Original ADSR EG and MG (with MIDI sync), 2 additional multi-stage Envelopes, 2 additional per-     voice LFOs, and 4 AMS Mixers

[Combination]
Number of Timbres:
16 Maximum
Master Keyboard Functionality:
Keyboard and velocity splits, layers, and crossfades of up to 16 Programs and/or external MIDI devices
Advanced Vector Synthesis:
Control oscillator volumes and synthesis & effects parameters via the Vector Joystick and the tempo-synchronized Vector Envelope.

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

[Sampling]
System:
Open Sampling System (resampling, In-Track sampling)
Bit Depth/Sampling Frequency:
16-bit/48 kHz stereo/mono sampling, maximum 512 MB memory
Sample Locations:
4,000 samples/1,000 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:
High, low, and mid band
Effect Types: 185
Modulation:
Dynamic Modulation and Common LFO
Effects Control Busses:
Two stereo side chains
Effect Presets: 783
Maximum 32 per 1 effect (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/Off, Latch, Chord, Assign, Module, Control, KARMA Realtime Control Sliders [1] – [8], KARMA Scene [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]
Drum Track Patterns:
697 preset (common with the preset patterns of the MIDI sequencer)

[Sequencer/HDR]
Tracks:
16-track MIDI sequencer + 16-track hard disk recorder + 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
697 preset/100 user patterns (per song)
18 preset/16 user template songs,
Format:
Korg (KRONOS, OASYS) format, SMF formats 0 and 1.
Audio Tracks:
16-track playback, 4-track simultaneous recording, WAV file format 16bit/24bit. Maximum single-file recording time (mono):
80 minutes
Automation:
Volume, Pan, EQ, and Send1/2; 5,000 regions (max.), Event Anchors, BPM Adjust
RPPR (Realtime Pattern Play and Record):
1 Pattern set per song.

[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. *6
*6 Need to use with External USB CD Drive, etc.
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, or Tone Adjust.
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/Off, Latch, Chord Assign, module Control
Display:
TouchView graphical user interface, 8 inch TFT, SVGA (800x600 dots), adjustable brightness
Outputs:
L/MONO, R:
1/4” Balanced; 170 ? Stereo; 85 ? Mono (L/MONO Only), Nominal Level: +4.0 dBu, Maximum Level: +16.0 dBu (when load impedance is 600 ? or greater)
Individual 1-4:
1/4” Balanced; 170 ? Stereo; 85 ? Mono, Nominal Level: +4.0 dBu, Maximum Level: +16.0 dBu (when load impedance is 600 ? or greater)
Headphones:
1/4” stereo phone jack, output impedance: 33 ?, Maximum Level: 60+60 mW (when load impedance is 33 ?),
S/P DIF:
Optical, 24-bit, IEC60958, EIAJCP-1201, 48 kHz, (the same signals as L/MONO, R)
USB-B:
24-bit, 48 kHz, 2 channels (the same signals as L/MONO, R)
Inputs:
Audio Inputs 1 and 2:
1/4” Balanced; Input Impedance: 10 k?, Nominal Level: +4.0 dBu, Maximum Level: +16 dBu, Source Impedance: 600 ?, S/N: 95 dB (Typical), Dynamic Range: 95 dB (Typical), Crosstalk: 95 dB (at 1 kHz, Typical)
S/P DIF:
Optical, 24-bit, IEC60958, EIAJCP-1201, 48 kHz
USB-B:
24-bit, 48 kHz, 2 channels
Control Inputs:
Damper pedal (half damper supported), assignable switch, assignable pedal
MIDI:
In, Out, Thru
Interface:
Two high-speed USB 2.0 A connectors (for external USB devices)
Disk Drives:
30 GB SSD (2.5”)
Power Consumption:
60 W
Dimensions: (W x D x H)
88-key:     57.28” x 16.18” x 5.71”
1,455 x 411 x 145 mm
73-key:     48.94” x 16.18” x 5.71”
1,243 x 411 x 145 mm
61-key: 41.42” x 14.25” x 5.28”
1,052 x 362 x 134 mm
Weight:
88-key: 50.71 lbs. / 23.0 kg
73-key: 44.75 lbs. / 20.3 kg
61-key: 27.56 lbs. / 12.5 kg
Accessories:
AC cord, Quick Start Guide, Accessory DVD Disk
(Restore Data, KORG USB Driver, Manual PDF, etc.)

[Option]
XVP-10: Expression/Volume Pedal
EXP-2: Foot Controller
DS-1H:     Damper Pedal
PS-1: Pedal Switch
PS-3: Pedal Switch