Korg GS173 Grandstage 73-Note Stage Piano
$4,299.00 $3,699.00 Add to cart

Korg GS173 Grandstage 73-Note Stage Piano

Brand: Korg


KORG’s Grandstage 73-Note Stage Piano delivers the ultimate playing experience to make your on-stage performance captivating.

Available to backorder


KORG's acclaimed flagship piano sound engine and meticulously selected keyboard sounds. Looks that pay respect to acoustic pianos, yet also convey the ingenuity and individuality of electronic instruments.

And a panel layout that is carefully designed to draw out the player's personality and expression. Firmly grounded in both newness and in the piano tradition, it's the birth of a masterpiece for a new generation.


  • Sound engines that deliver the utmost in stage sound perfection
  • A user interface designed for playability on stage.
  • Reverb and delay that are easy to control.
  • Dynamics knob lets you instantly control the sound's crispness and expressivity.
  • Favorite buttons let you instantly recall the sound you want.
  • Smooth sound transition creates a natural-feeling change when you switch sounds.
  • Three-band equalizer lets you shape your sound.
  • Layer/split capability lets you easily combine sounds.
  • Panel lock prevents unintended operation.
  • RH3 keyboard responds to even the subtlest nuances of your playing.
  • Design that combines both elegance and individuality.
  • Music rest, pedal are included.
  • Made in Japan – Premium Japanese Quality.



  • 73-key: RH3 (Real Weighted Hammer Action 3), E1–E7, velocity sensitive, aftertouch not supported

Tone Generator

  • Methods of Synthesis and Maximum Polyphony:
    • SGX-2 (Acoustic Piano Sound Engine): 60 dual stereo notes (equivalent to 240 voices max.)
    • EP-1 (Electric Piano Sound Engine): 100 voices
    • AL-1 (Analog Modeling Sound Engine): 36 voices
    • CX-3 (Tonewheel Organ Sound Engine): 128 voices
    • VOX Organ (Transistor Organ Sound Engine): 100 voices
    • Compact Organ (Transistor Organ Sound Engine): 100 voices
    • HD-1 (PCM Sound Engine): 64 stereo notes (equivalent to 128 voices max.)
  • Preloaded PCM Storage Capacity: Approx. 19 GB (approx. 32 GB using linear conversion)
  • Number of Sounds: 500
  • Favorite: 64 (Includes 32 preloads)


  • Insert Effect for Sound Programs: 3-band EQ and four insert effects.
  • Reverb/Delay Section: REVERB/DELAY button, Type selection knob, DEPTH knob, TIME-TAP button Select 1 from Reverb type (HALL, STAGE, ROOM, SPRING), Delay type (DELAY, CROSS, TAPE, MOD DLY). DEPTH, TIME (Tap) parameter, user-editable
  • Equalizer Section: EQUALIZER button, LOW, MID, HIGH slider (3 band Equalizer)
  • Demo Songs: 16

Panel Interface

  • FAVORITE: 64 (A–H: 8, 1–8: 8), WRITE button
  • KEYBOARDS: Category selection knob, Display (128 x 64 dots), LEVEL knob, VARIATION knob, EDIT button
  • ENSEMBLE: Category selection knob, Display (128 x 64 dots), LEVEL knob, VARIATION knob, EDIT button
  • Dynamics Section: DYNAMICS button, DYNAMICS knob
    Controls how the volume and sound respond to changes in keyboard touch.
  • Other: SPLIT button, SWAP button, EXIT (PANEL LOCK) button, SYSTEM button, TRANSPOSE button, DEMO (SYSTEM button + TRANSPOSE button)


  • Realtime Controller: Pitch bend wheel, Modulation wheel, SW1 button, SW2 button
  • Master Volume: MASTER VOLUME knob

Principal Specifications

  • Frequency Response: 20 Hz–22 kHz: +/-1.0 dB, 10 k ohm load
  • THD+N: 20 Hz–22 kHz: 0.005%, 10 k ohm load
  • S/N Ratio: 105 dB, 10 k ohm load

Audio Output

  • Audio Output (Left/Right): XLR
    • Connector: XLR-3-32 type (balanced)
    • Output Impedance: 600 ohm
    • Maximum Level: +16 dBu
    • Load Impedance: 10 k ohm
    • LIFT - GND switch
  • Audio Output (L/Mono, R): phone
    • Connector: 6.3 mm TS phone jacks (unbalanced)
    • Output Impedance: 1.1 k ohm stereo; 600 ohm mono (L/Mono only)
    • Maximum Level: +16 dBu
    • Load Impedance: 10 k ohm
  • Headphones
    • Connector: 6.3 mm stereo phone jack
    • Output Impedance: 50 ohm
    • Maximum level: 150 mW + 150 mW @32 ohm


  • Foot Controllers: DAMPER (half-pedaling supported), SWITCH, PEDAL
  • USB: USB A (TYPE A) x1: For connecting USB storage media; USB B (TYPE B) x1: USB-MIDI Interface
  • Power Supply: AC Power Supply terminal, Power button
  • Dimensions (W x D x H): 73-key: 1099 mm x 359 mm x 140 mm / 43.27" x 14.13" x 5.51" (excluding music stand)
  • Weight: 73-key: 17.0 kg / 37.48 lbs (excluding music stand)
  • Power Consumption: 30 W
  • Included Items: AC cord, Music stand, Damper pedal (DS-1H)

Watch: Korg Grandstage: Set Any Stage

Additional information

Weight 17 kg
Dimensions 40 × 36 × 110 cm