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Korg Kross 88 Black Workstation Keyboard

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Quick Overview

With the KROSS, the sounds and songs that you've created at home and the system that you use every day can go with you onto the stage or into the street!

A mobile synthesizer keyboard with impressive features

With the KROSS, the sounds and songs that you've created at home and the system that you use every day can go with you onto the stage or into the street! Featuring rich sounds that exceed its class, yet remaining highly portable, the KROSS is designed for practical usability. There's a convenient mic input and a built-in audio recorder, and it can run on 6 x AA batteries. It's a distinctive new standard in music workstations, with specs and style that set it apart from all others.


  • The lightweight body is only 4.3 kg/9.5 lbs (61-key model) or 12.4 kg/27.3 lbs (88-key model), and can be powered by 6x AA batteries
  • Piano, electric piano, and drum sounds that exceed its class
  • A wide variety of sounds that utilize twice as much PCM memory as previous instruments, and meet the needs of a broad range of musical styles
  • Sound Selector makes it easy to find the sound you're looking for
  • Favorites function lets you register 64 selected sounds or audio songs for one-touch access - a great feature for live performances
  • Pro-quality EDS-i sound engine built-in, with a total of seven effects available for simultaneous use
  • External input jacks allow a mic or external audio source to be directly connected.
  • Quick Layer/Split function for on-the-fly versatility
  • Stereo audio recorder allows you to record and overdub your performances and vocals
  • Step sequencer inherited from the Electribe, a 16-track MIDI sequencer, a drum track, and an arpeggiator
  • Connects to your computer via USB for plug-in integration with your favorite DAW


A lightweight bodythat runs on AA alkaline batteries

In spite of being packed with functionality, the KROSS is lightweight and highly portable. The 61-key model with its distinctive rear bar is amazingly light; at only 4.3 kg/9.5 lb, it's the most portable in its category. The 88-key model packs a piano-touch hammer action keyboard into a mere 12.4 kg/27.3 lbs. 

Both models are highly portable and lightweight, and can operate on an AC adapter or on six AA alkaline or nickel-metal hydride batteries.

Piano, electric piano, and drum sounds that exceed their class


Top professional musicians around the world use Korg synthesizers. The piano, electric piano, and drum sounds of the KROSS have been taken from the flagship instruments used by these pros, giving the KROSS a set of sounds that surpasses other instruments in its class. 

The grand piano features lavishly-sampled decays with three levels of velocity as well as reproducing the noises produced by the damper pedal, ensuring that every nuance of your performance is reflected in the sound. Also included are an upright piano (unusual for a PCM synth), as well as distinctive sounds from Korg's famed SG-1D Sampling Grand and M1 Music Workstation. The five classic electric piano sounds are just as expressive as the acoustic piano sounds; they also include effect settings, giving you a complete package of the performance-ready sounds that you want. 

In addition, careful attention has been paid to the drum sounds that are indispensable for song production on a workstation, making them realistic and fresh.

A wide variety of sounds

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Because of its portability, the KROSS will be used in a wide range of situations, and that's why it provides a broad variety of sounds that surpasses even the flagship models of the previous generation. 

The PCM data is approximately twice as large as preceding models such as the X50 and the PS60. Staples such as the frequently-used rock/jazz organ, strings, brass, and synth sounds have been brushed up. There are also instruments such as toy piano, accordion, combo organ, church organ, and even vintage instruments such as a tape sampler, as well as bell-type sounds and the sounds you need for cutting-edge dance music and electronica - unique sounds that have not been included in a synth of this class. Our design goal has been to make KROSS the only instrument you need.

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Pro-quality EDS-i sound engine is built-in

The EDS-i sound engine is a high-quality sound engine distilled from the EDS/EDS-X sound engines found on Korg’s most advanced instruments. It allows you to use a total of seven effects simultaneously: five insert effects and two master effects. 

Ranging from standards such as delay, reverb, chorus, flanger, and rotary speaker, and also including amp modeling powered by Korg's proprietary "REMS" modeling technology, and even a robot voice vocoder, you can choose from 134 different high-quality effects.

Sound Selector makes it easy to find the sound you're looking for


While the KROSS provides an extremely broad range of sounds, there are two dedicated dials that let you easily find the sound you need. 

First use the category dial to choose the broad category such as piano, electric piano, organ, bell, synths, basses, or strings. Then turn the select dial to find the sound you want. It's a quick way to focus on selecting the needed sounds without being distracted by sounds of another type.

Favorites function lets you register 64 selected sounds or audio songs for one-touch access


Sounds that you've created or that you use frequently can be registered to four banks of 16 buttons, giving you a total of 64 sounds that can be recalled at a single touch. This is a real convenience during live performances or song production. 

You can also register audio songs and recall them along with sounds.

External input jacks allow a mic or audio player to be directly connected

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The MIC IN jack (1/4" phone jack) lets you directly connect a mic. If you're a vocalist as well as a player, there's no need to obtain a separate mixer. 

In addition, there's a LINE IN jack (stereo 1/8" jack) for you to connect your audio player, giving you the option of performing along with the playback in a variety of situations on stage or anywhere else you go.

Quick Layer/Split function

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Dedicated buttons are provided for Layer/Split settings. Start by selecting the first program you want to use; then press the dedicated button to enable Layer or Split. 

When this is on, a screen will appear in which you can choose the other sound and specify details such as the split point. Then simply write your settings, and the layer/split sound will be saved as a Combination.

Stereo audio recorder allows you to overdub your performances and vocals

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The built-in stereo audio recorder can record not only the performance of the KROSS itself, but also the sound of a mic or external input. You can play backing tracks that you created, or overdub onto them to create songs and demos. 

Audio can be imported and exported as WAV files using an SD card (separately sold), making it easy to exchange material with your computer.

Step sequencer inherited from the Electribe, a 16-track MIDI sequencer, a drum track, and an arpeggiator

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The KROSS features a step sequencer inherited from the popular Electribe series. It's a simple design in which you use the sixteen buttons to turn individual notes on or off, allowing you to quickly and easily create original rhythm patterns of up to 64 steps. 

The lightweight body of the KROSS contains all of the basic functionality you expect from a music workstation, including a full-featured 16-track MIDI sequencer with quantization, copy and paste, and individual note event editing. By using an SD card (sold separately), you can exchange SMF-format data with your computer. The KROSS gives you a full set of workstation and production tools, including a Drum Track function that lets you add rhythm simply by pressing a dedicated button, and an arpeggiator that can be used not only with synth sounds but also to generate guitar and bass riffs.

Connects to your computer via USB

You can connect the KROSS to your computer via USB for easy transfer of MIDI data. By using KROSS Editor and Plug-In Editor you can simultaneously view and edit large numbers of parameters on your computer, and use the KROSS within your DAW as if it were a software synthesizer.


    Editor Prog

    Program Edit


    Editor Seq

    Sequencer Edit


61 key 

*Velocity sensitive is supported, after touch is not supported 

*Standard C2 - C7 (transposable in the range [C1...C6]-[C3...C8])
88-key: NH (Natural Weighted Hammer Action) keyboard 

*Velocity sensitive is supported, after touch is not supported

*Standard A0 - C8 (transposable in the range [A-1...C7]-[A1...C9]) 

*The NH keyboard reproduces the touch of an acoustic piano, with a heavier feel in the low register and a lighter feel in the upper register.
EDS-i(Enhanced Definition Synthesis - integrated)


Maximum Polyphony
80 voices (80 Oscillators) / Single Mode 

40 voices (40 Oscillators) / Double Mode 

*The maximum simultaneous voice polyphony will vary depending on oscillator settings such as stereo multisamples and velocity crossfading.
Preset PCM Memory
Approximately 112 MB (In case of 48 kHz, 16-bit Linear PCM converted)

421 multisamples (including 6 Stereo multi-samples)

890 drumsamples (including 49 Stereo drumsamples )
OSC1 (Single)
OSC1 + 2 (Double): Stereo multisamples are supported, and four levels of velocity
switching/crossfading/layering are possible for each oscillator
Four types of filter routing (single, serial, parallel, 24 dB)

Two multi-mode filters per oscillator (low pass, high pass, band pass, band reject)
For each oscillator: two envelope generators (Filter & Amp), Two LFOs, Two key tracking generators (Filter & Amp), Two AMS mixers, Pitch EG, Common LFO, Two common key tracking generators
The Number of Timbre
Max: 16 Timbres
Key zone and velocity zone settings can be used to switch sounds, and the Tone Adjust function allows
Program settings to be modified.
Master Keyboard Functionality
External MIDI device control
Drum Kit
Stereo and mono drum samples
4 velocity zones switch (crossfades and layers)
The number of Combination
640 Program (512 Preload)
The number of Program
384 Combination (256 Preload)
The number of Drum Kit
48 Drum Kit (32 Preload)
256 GM2 Program + 9 GM2 Drums Program


User: 64 (16 favorite x 4 bank)


Insert Effects
5 Insert Effects (stereo in/out)
Master Effects
2 Master Effects (stereo in/out)
Effect Types
Total: 134 types
*74 types for Insert Effect
*101 types for Master Effect 1
*120 types for Master Effect 2
Dynamic Modulation
Effects Control Busses
Stereo side chain (Limiter, Gate, Vocoder, etc)

Polyphonic Arpeggiator

Program Mode
1 unit
Combination, Sequencer Mode
2 units
Number of pattern
1,028 User Arpeggio patterns (916 Preload)
Number of Arpeggio patterns
5 Preset Arpeggio patterns
1,028 User Arpeggio patterns (916 Preload)
1,028 User Arpeggio patterns (916 Preload)
Number of Tone
12 tones
Number of step
Max: 64 steps

Step Sequencer

Program Mode
1 unit
Combination Mode
1 unit
Sequencer Mode
1 unit
Number of Tone
12 tones
Number of step
Max: 64 steps
*Step sequencer settings can be created independently for each program, combination, and song.

Drum Track

700 patterns (shared with sequencer patterns)
Trigger Mode/ Sync/ Zone settings


16-track MIDI Sequencer
Number of Songs
Max; 128 Songs
40.00 - 300.00 (1/100 BPM resolution)
Measure / Beat / Tick
Number of tone
12 tones
Template Song
16 preset / 16 user template songs
700 Patterns (shared with Drum Track patterns)
KORG (KROSS) format, SMF format 0 and 1

Audio Recorder

Recording format
PCM Audio format (48 kHz / 16‐bit)
WAV (.wav): 44.1 kHz* / 16‐bit, 48 kHz / 16‐bit, Stereo 
*Automatic conversion from 44.1 kHz to 48 kHz
WAV (.wav): 48 kHz / 16‐bit
Continuity recording time
Max: 3 hours
Recording time
Depends on the SD card that is used; approximately 90 minutes per 1 GB
Number of Songs
Max: 200 Songs
Number of multi-track recordings
Depends on the amount of space remaining on the SD card
Hour/ Min/ Sec


File, Utility, Information


General Control
Pitch bend wheel, Modulation wheel, SW [1], SW [2], TEMPO knob, TAP button
Step Sequencer/Favorite
1-16 buttons, STEP SEQ button, SET UP button for Control, RUN button, FAVORITE button,
BANK button for Control, LED
A/B/C/D (It uses both as “STEP SEQ” and “FAVORITE”)
Drum track
ARP button
Effect On/Off
MASTER FX button
Audio Recorder
SETUP button, PLAY/PAUSE (> / II) button

User Interface

240 x 64 pixel LCD w/backlight, with adjustable contrast (hold the EXIT button and turn the Value dial)
[COMBI], [PROG], [SEQ], [GLOBAL/MEDIA] buttons
VALUE controller
[VALUE] Dial, [Cursor (Left/Right/Up/Down)], [EXIT], [ENTER],[FUNCTION],[PAGE+],[PAGE-],[MENU] buttons
[PAUSE], [REW], [FF], [LOCATE], [REC], [START / STOP] buttons
[TEMPO] knob, [TAP] button
[SPLIT], [LAYER] buttons
[AUDIO IN] button, [VOLUME] knob

Control Input

Damper (Half Damper is supported), Assignable Switch, Assignable Pedal


Audio Output (L/MONO, R)
6.3mm Phone jack (Unbalanced)
Output Impedance
1.1kΩ (L / Mono terminal: in case of Mono output, = 550Ω)
Maximum level
+10.0 dBu, Load Impedance: more than 10 kΩ.
[VOLUME] It is possible to control by knob.
Headphone Output
3.5mm Stereo mini phone jack
Output Impedance
Maximum level
40 + 40 mW
[VOLUME] It is possible to control by knob.


3.5mm Stereo mini phone jack
Input Impedance
1.1 kΩ
Maximum level
-42 - 0 dBu
6.3mm Phone jack (Unbalanced)
Input Impedance
33 Ω
Maximum level
-48 - -6 dBu

Other Connectors

Type B x 1 (USB-MIDI Interface)
SD Card Slot
1 slot, Max: 2 GB SD Memory Card is supported, Max: 32 GB SDHC Memory Card is supported, (SDXC Memory Cards are not supported)

Power Supply

Power Supply
AC Adaptor (DC9V), POWER button, AA alkaline battery x 6, or AA Ni-MH: Nickel metal hydride battery x 6
Battery Life
In case of AA alkaline battery x 6 = Approximately 4 hours*
In case of AA Ni-MH: Nickel metal hydride battery (1900 mAh) x 6 = Approximately 5 hours* 
*Varies according to the batteries used and the conditions of usage
Power Consumption
5 W


(W x D x H)
37.09 x 11.06 x 3.58 inches / 942 x 281 x 91 mm
57.01 x 15.08 x 5.32 inches / 1,448 x 383 x 135 mm
9.48 lbs. / 4.3 kg
27.34 lbs. / 12.4 kg
AC Adapter, Quick Start Guide
Option: XVP-10 Expression/Volume pedal
EXP-2 Foot Controller
DS-1H Damper Pedal
PS-1, PS-3 Pedal Switch
* All products names and specification names are trademarks or registered trademarks of their respective owners.
* Specifications and appearance are subject to change without notice for improvement.
* Appearance and specifications of products are subject to change without notice.