Korg Grandstage specs

The Grandstage is Korg's stage piano, combining the SGX-2 acoustic piano engine with EP-1 electric pianos, the CX-3 and VOX organ engines and HD-1 PCM in one instrument. It uses the same RH3 hammer action as Korg's upper-end home pianos and loads about 19 GB of preloaded PCM (roughly 32 GB linear). The panel is deliberately direct - 500 sounds, 64 favourites, a Dynamics knob, Smooth Sound Transition and a hardware three-band EQ.

Best for:gigging musicianslive performanceworship

Brand: Korg

Statuslegacy
Keys88
Key actionRH3 (Real Weighted Hammer Action 3), A0-C8, velocity sensitive, aftertouch not supported
Polyphony240
Sounds / presets500
Sound engineSeven sound engines: SGX-2 acoustic piano, EP-1 electric piano, AL-1 analog modelling, CX-3 tonewheel organ, VOX transistor organ, Compact transistor organ and HD-1 PCM
Effects4 insert effects plus 3-band EQ per sound, reverb/delay section (hall, stage, room, spring) and a 3-band master equalizer
SpeakersNone (line out only)
BluetoothNo
USB audioYes
Pads / fadersno
Weight20 kg
Dimensions (W×D×H)[1311, 359, 140] mm
Battery powerno
Released2017

Manuals & documentation

Official manufacturer downloads
Suggest a correction

Strengths

  • Seven sound engines including the SGX-2 acoustic piano and the full CX-3 tonewheel organ
  • RH3 Real Weighted Hammer Action 3 - the same bed as Korg's premium home pianos
  • About 19 GB of preloaded PCM with 500 sounds and 64 favourites
  • XLR balanced outputs plus Smooth Sound Transition for gigging

Weaknesses

  • RH3 keybed does not support aftertouch
  • No on-board speakers
  • USB B is MIDI-only - the instrument cannot stream audio to a computer over USB

Compare the Korg Grandstage with

Spec source: www.korg.com — verified 2026-10-11

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