Keyboard:
88-key: RH3 (Real Weighted Hammer Action 3), A0-C8, 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)
* The actual polyphony will vary depending on the synthesis engines and effects being used.
* KORG's proprietary system dynamically allocates voice processing power between synth engines as necessary.
The quoted maximum numbers of voices apply when 100% of the voice processing power is devoted to a single engine.
Effect
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)
Controllers
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
General
Foot Controllers: DAMPER (half-pedaling supported), SWITCH, PEDAL
MIDI: IN, OUT
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)
Accessories
Expression/Volume Pedal:
XVP-20
XVP-10
Foot Controller: EXP-2
Pedal Switch:
PS-3
PS-1
Hard Case:
HC-Grandstage 73 (dedicated hard case for 73 key model)
