Keyboard : 61 key  *Velocity sensitive is supported, after touch is not supported  *Standard C2 - C7 (transposable in the range [C1...C6]-[C3...C8])  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 ARPEGGIATOR - 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 OTHER Dimensions (W x D x H) : 37.09 x 11.06 x 3.58 inches / 942 x 281 x 91 mm  Weight : 9.48 lbs. / 4.3 kg