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Kross Keyboard Lab

The Korg Kross Keyboard Lab is a solution to the challenge of improving piano instruction in classroom environments. In the 21st century, teaching environments have changed and the Kross Keyboard Lab is a great answer to many of these new challenges.

All of the Korg Lab Solutions are designed around the GEC5 Group Education Controller group audio controller, a cost-effective stereo digital audio routing system. Suitable for any teaching level and any combination of electronic instruments, (keyboards, guitars, sound modules, computer soundcards, etc.) the GEC5 allows teachers to interact with as many as 32 individual student stations at once, or up to 64 students with one Teacher Unit.

The Korg Kross is available in a 61 or 88-key version and is ideal for classrooms that will be focusing on music technology, sound design, sequencing and recording in addition to proper piano technique. Kross keyboards feature a synthesizer, sequencer and effects. It is available for classrooms of any size, up to 32 individual student stations, or 64 stations if you “split” the keyboard to allow for two students per keyboard.

The GEC5 features three chief modes of operation; Lecture, Practice and Group. In Lecture Mode, students hear the teacher's microphone and instrument as well as their own instruments. In Practice Mode, students hear only his or her own instrument and the teacher has the option of eavesdropping or initiating two-way communication. In Group Mode, students can listen to the instruments and microphones of other group members.

The Korg Kross Keyboard Lab additionally can include a teacher's station work desk, a pair of studio monitors for the instructor, a set of microphone-equipped Koss SB40 headphones, and all of the cabling you’ll need to connect the system together. Each student station is equipped with an instrument, an GEC5 Student Interface Unit and a microphone-equipped Koss SB40 headset. The GEC5 Student Interface Unit connects to the GEC5 using Cat5 cable, as well as to the student's keyboard and headset.


KEYBOARD

KROSS-61

61 key 

*Velocity sensitive is supported, after touch is not supported 

*Standard C2 - C7 (transposable in the range [C1...C6]-[C3...C8])

KROSS-88

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.

 

System

EDS-i(Enhanced Definition Synthesis - integrated)

 

SOUNDS

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 )

 

PROGRAM

Oscillator

OSC1 (Single)
OSC1 + 2 (Double): Stereo multisamples are supported, and four levels of velocity
switching/crossfading/layering are possible for each oscillator

 

Filters

Four types of filter routing (single, serial, parallel, 24 dB)

Two multi-mode filters per oscillator (low pass, high pass, band pass, band reject)

 

Modulation

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

 

COMBINATION

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

User

640 Program (512 Preload)

 

The number of Program

384 Combination (256 Preload)

 

The number of Drum Kit

48 Drum Kit (32 Preload)

 

Preset

256 GM2 Program + 9 GM2 Drums Program

 

Favorite

User: 64 (16 favorite x 4 bank)

 

EFFECTS

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

 

Modulation

Dynamic Modulation

 

Effects Control Busses

Stereo side chain (Limiter, Gate, Vocoder, etc)

 

POLYPHONIC ARPEGGIATPR

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

Preset

700 patterns (shared with sequencer patterns)

Trigger Mode/ Sync/ Zone settings

 

SEQUENCER

Tracks

16-track MIDI Sequencer

 

Number of Songs

Max; 128 Songs

 

Resolution

1/480

 

Tempo

40.00 - 300.00 (1/100 BPM resolution)

 

 

Counter

Measure / Beat / Tick

 

Number of tone

12 tones

 

Template Song

16 preset / 16 user template songs

 

Preset

700 Patterns (shared with Drum Track patterns)

 

Format

KORG (KROSS) format, SMF format 0 and 1

 

AUDIO RECORDER

Recording format

PCM Audio format (48 kHz / 16‐bit)

Import

WAV (.wav): 44.1 kHz* / 16‐bit, 48 kHz / 16‐bit, Stereo 
*Automatic conversion from 44.1 kHz to 48 kHz

 

Export

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

 

Counter

Hour/ Min/ Sec

 

Media

File, Utility, Information

 

CONTROLLERS

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

DRUM TRACK button

 

Arpeggiator

ARP button

 

Effect On/Off

MASTER FX button

 

Audio Recorder

SETUP button, PLAY/PAUSE (> / II) button

 

USER INTERFACE

Display

240 x 64 pixel LCD w/backlight, with adjustable contrast (hold the EXIT button and turn the Value dial)

 

Category

[CATEGORY], [SELECT] dials

 

Mode

[COMBI], [PROG], [SEQ], [GLOBAL/MEDIA] buttons

 

VALUE controller

[VALUE] Dial, [Cursor (Left/Right/Up/Down)], [EXIT], [ENTER],[FUNCTION],[PAGE+],[PAGE-],[MENU] buttons

 

Sequencer

[PAUSE], [REW], [FF], [LOCATE], [REC], [START / STOP] buttons

 

TEMPO

[TEMPO] knob, [TAP] button

 

Split/Layer

[SPLIT], [LAYER] buttons

 

Others

[AUDIO IN] button, [VOLUME] knob

 

Control Input

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

 

Outputs

Audio Output (L/MONO, R)

 

Connector

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

Connector

3.5mm Stereo mini phone jack

Output Impedance

33Ω

Maximum level

40 + 40 mW

[VOLUME] It is possible to control by knob.

Inputs

AUDIO INPUT (Line In)

Connector

3.5mm Stereo mini phone jack

Input Impedance

1.1 kΩ

Maximum level

-42 - 0 dBu

MIC IN

Connector

6.3mm Phone jack (Unbalanced)

Input Impedance

33 Ω

Maximum level

-48 - -6 dBu

 

OTHER CONNECTORS

MIDI

IN, OUT

USB

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

 

OTHERS

Dimensions:
(W x D x H)

KROSS-61

37.09 x 11.06 x 3.58 inches / 942 x 281 x 91 mm

KROSS-88

57.01 x 15.08 x 5.32 inches / 1,448 x 383 x 135 mm

Weight

KROSS-61

9.48 lbs. / 4.3 kg

KROSS-88

27.34 lbs. / 12.4 kg

Accessories

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
SC-KROSS 61 Soft case

 

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