Korg Grandstage X

A Korg Flagship Reimagined for the Modern Stage

A direct heir to the technologies of Korg's flagship workstations, the Grandstage X concentrates the engines from the "Kronos/Nautilus" world into a streamlined and fast-to-operate stage piano. Designed for both stage and studio, it combines an elegant two-tone design with an immediate interface to switch from a grand concert piano to a vintage EP or an iconic organ in the blink of an eye.

Keyboard Design

RH3 (Real Weighted Hammer Action 3), 88 keys A0-C8, graded weighted hammer mechanism (heavier in the bass, lighter in the treble) to replicate the feel of a grand piano. Velocity sensitivity is instantly adjustable via the Key Touch slider, allowing you to tailor the keyboard response to your playing style and each repertoire.

Sound Quality

Hybrid sampling/modeling source with 7 engines: SGX-2 (acoustic pianos without looping, up to 12 velocity layers, resonances and mechanical noises), EP-1 MDS (responsive vintage electric pianos), CX-3/VOX/FC-1 (tonewheel and transistor organs), AL-1 (analog modeling), HD-1 (multi-sample PCM). A total of 700 sounds, maximum polyphony of 128 voices, and approximately 25.5 GB of preloaded PCM (linear equivalent ~51 GB) ensure richness and realism.

Built-in Effects

• Reverbs: Hall, Stage, Room, Spring, Shimmer.
• Delays: Delay, Mod Delay, Tape Echo.
• Dedicated processing (audio input): Dyna Compressor, Exciter/Enhancer, Isolator, Multi-Mode Filter, Mastering Limiter, Limiter, Graphic EQ, Modern Compressor.
• 3-band master EQ (Low/Mid/High), Analog Tone Nutube effect, rotary speaker and vibrato for organs, Unison function to thicken timbres.

Technical specifications

Number of effects	18	Transposition	Yes
Arpeggiator	No	Max polyphony	128
Bluetooth	No	Included accessories	sustain pedal, Mains power, lectern
Velocity sensitive	Yes	USB to Host port	No
MIDI DIN I/O	Yes	Color	White
Category	stage piano	Finishing	Satin
Number of keys	88	Preset number	20
Touch	Heavy	Display	OLED
Split & layer	layer, split	Weight	25 kg
Number of sounds	700	Dimensions (mm)	1371 x 461 x 168

Keyboard	RH3 (Real Weighted Hammer Action 3), 88 notes A0-C8, velocity-sensitive.	Effects for organ	Rotary/Vibrato.
Manufacture	Japanese.	Unison function	yes.
From the Kronos/Nautilus lineage	SGX-2 (acoustic piano), EP-1 (electric piano), AL-1 (analog modeling), CX-3 (tonewheel organ), VOX Organ (transistor organ), FC-1 (transistor organ), HD-1 (PCM).	Rhythm section	yes.
True polyphony	varies according to the engines/effects.	Buttons	Chord Progression, Key, Setup, Play/Stop, Bass Mute, Tempo.
Favorites	100 (including 20 presets/preloaded).	PCM preload capacity	approx. 25.5 GB (linear equivalent: approx. 51 GB).
Reverb	Hall, Stage, Room, Spring, Shimmer.	Dimensions	1371 x 461 x 168 mm.
Audio input	Dyna Compressor, Exciter/Enhancer, Isolator, Multi-Mode Filter, Mastering Limiter, Limiter, Graphic EQ, Modern Compressor.	Power consumption	20 W.
Master EQ	3 bands (Low, Mid, High).	Included	power cord, music rest, Korg DS-1H sustain pedal.
Analog Tone	Nutube (miniaturized tube).	Optional	XVP-20, EXP-2, PS-3, PS-1 pedals; ST-WGS stand.