Specifications
System: OA (Open Architecture) Synthesis System
Keyboard: OASYS 88: 88-key weighted (Real Weighted Hammer Action2), OASYS 76: 76-key synth-action
Tone Generator
Method of Synthesis: Internal:PCM (HD-1 High Definition Synthesizer); EXi (Expansion Instruments): Analog Modeling (AL-1 Analog Synthesizer), Tonewheel organ modeling (CX-3 Tonewheel Organ)
Maximum Polyphony *1*2: HD-1: 172 voices (172 oscillators), AL-1: 84 voices, CX-3: 172 voices
Preset PCM: 306MB ( 1,472 multisamples, 1,372 drum samples)
Expansion PCM Libraries: 310 MB (EXs 1 ROM Expansion: 138 multisamples, 1,484 drum samples), 511MB (EXs 2 Concert Grand Piano: 5 stereo multisamples)
Capacity of PCM RAM: 512MB *3
Wave Sequence: 374 user memory, 150 preload
PCM Program
Advanced Vector Synthesis: Available to control volumes of each oscillator, synth parameters, effect parameters by vector joystick and vector envelope (can be synced to MIDI clock)
Structure: Single: only OSC1, Double: OSC1 and OSC2
Oscillator: Four-stage velocity switch/crossfade/layer per oscillator
Filter: Two multi-mode filters (low-pass, high-pass, band-pass and band-reject) per voice with four-mode filter routings (single, serial, parallel and 24dB mode)
Driver: A non-linear driver and low boost circuit per voice
EQ: Three-band EQ (mid-band: variable center frequency)
Modulation: Three envelope generators, two LFOs per voice, common LFO, four key tracking generator, AMS (Alternate Modulation Source), two AMS mixers
Drumkit: Ability to assign stereo/mono drum samples, four-stage velocity switch/crossfade
EXi Program
Advanced Vector Synthesis:
Available to control volumes of each oscillator, synth parameters, effect parameters by vector joystick and vector envelope (can be synced to MIDI clock)
Modulation: Common step sequencer, AMS (Alternate Modulation Source), Common LFO, two key tracking generators
EQ: Three-band EQ (mid-band: variable center frequency)
AL-1 Analog Synthesizer
Oscillator: OSC1, OSC2, Sub-oscillator and noise generator; ring modulation and modulation between oscillators available
Audio Input: Ability to modify external audio source with ring modulator, filters, driver, amps, EQ, etc.
Filter: Two multi-mode filter (low-pass, high-pass, band-pass and band-reject) with four types of filter routings (single, serial, parallel and 24dB mode), multi-filter-mode (only Filter-A; ability to have mixing/morphing with outputs from low-pass, high-pass, band-pass and direct)
Driver: A non-linear driver and low boost circuit per voice
Modulation: Five envelope generators, four LFOs per voice, two key tracking generators, two AMS mixers, step sequencer per voice
CX-3 Tonewheel Organ
Tonewheel Organ Modeling: Clean/Vintage mode, percussion, key click, wheel brake
EX Mode: Four variable frequency ratio drawbars and percussion
Internal Effects: Rotary speaker, vibrato/chorus, amp modeling, three-band EQ
Drawbar Control: Controlled via nine sliders on front panel (Tone Adjust function)
Split : Upper, Lower (even in EX mode)
Modulation: Two AMS mixers
Combination
Number of Timbre, Master Keyboard Functionality: Maximum 16 timbre, keyboard/velocity split/layer/crossfade, editing program setup with Tone Adjust function, ability to control external MIDI equipments
Advanced Vector Synthesis: Available to control volumes of each oscillators, synth parameters, effect parameters by vector joystick and vector envelope (can be synced to MIDI clock)
Number of Program/Combination/Drumkit: 1,664 user memory programs (896 (640 PCM+256EXi) preload), 1,792 user memory combinations (384 preload), 152 user memory drumkit (40 preload), 256 GM Level2 preset programs+ 9 GM Level2 drum preset programs
Sampling
System: Open Sampling System (resampling, In-Track sampling), 16bit/48kHz stereo/mono samping, maximum 500MB memory, 4,000 samples/1,000 multisamples (128 indexes per a multisample), direct sampling (ripping) from audio CD (CD-DA), available to load Korg format, AKAI S1000/S3000 data, AIFF, WAVE format
Effects
Insert Effects: 12 insert effects, stereo in/out
Master Effects: Two master effects, stereo in/out
Total Effects: Two total effects, stereo in/out
Timbre EQ: A three-band EQ per timbre
Effect Types: 185 types (Every effect types can be used as insert, master and total effect)
Modulation: Dynamic modulation, common LFO
Effect Control Buss: Stereo side chain (for compressor, gate, vocoder, etc.)
Rec Buss: Two stereo busses (for setting up of sampling, recording)
KARMA
KARMA Module: One module in Program mode, four modules in Combination and Sequencer mode
GE: 2,000 preset
Controller: ON/OFF, LATCH, CHORD, ASSIGN, MODULE, CONTROL, KARMA REALTIME CONTROL SLIDERS [1] – [8], KARMA SCENE [1] – [8], KARMA SWITCHES [1] – [8], KARMA Waveform Control function, GE Sub-Category function, Auto RTC (Real Time Control) setup function
Sequencer/HDR
Tracks: 16-track MIDI sequencer + 16-track hard disk recorder + a master track
Number of Songs: 200 songs
Resolution: 1/192 tick per quarter note
Tempo: 40.00 – 240.00 (1/100 BPM resolution)
Maximum memory: 400,000 MIDI events (only MIDI data) or 300,000 audio events (audio data only)
MIDI Track: 16 tracks and a master track, 150 preset/100 user pattern (per song), 16 preset/16 user template song, format: Korg (OASYS) format, SMF format 0 and 1 supported
Audio Track: 16 track playback (max.), four track recording (max.) simultaneously, WAVE file format, maximum continuous recording time: 80 minutes (mono), automation: volume, pan, EQ, send 1/2, 5,000 regions (max.), Event Anchor function, BPM Adjust function
RPPR: A pattern set available per song
Disk Mode: Load, save, utility, audio CD burning, audio CD playback, data filer function (save/load of MIDI System Exclusive data), CD-R/RW (UDF format read/write), ISO9660 Level 1
Controller: Vector joystick, joystick, ribbon controller, SW [1], [2], pad [1] – [8] (velocity sensitive), control surface (knob [1]-[8], master slider, switch [1]-[8] (upper), switch [1]-[8] (lower), slider [1]-[8], master slider), KARMA (ON/OFF, LATCH, CHORD ASSIGN, MODULE CONTROL)
Display: TouchView graphical user interface, 10.4 inch TFT, 640x480 dots, adjustable angle
Output: L/MONO, R, Individual 1-8 (1/4” phone jacks, output impedance: 1.1k ohm (stereo), 550 ohm (mono, L/MONO only), max. level: less than +18.5dBu (when load impedance is 100k ohm)), headphones (1/4” stereo phone jack, output impedance: 33 ohm, max. level: 72mW (when load impedance is 33 ohm)), S/P DIF (optical, 24bit, IEC60958, EIAJCP-1201, 48kHz/96kHz)
Input: Audio Inputs 1 and 2 (XLR-1/4” phone combi jacks (balanced), MIC/LINE switches, level control knobs, phantom power switches, input impedance: 10k ohm, nominal level: +4dBu to –36.5dBu (LINE, level control knob=min. to max.), -19.5dBu to –62dBu (MIC, level control knob=min. to max.), maximum level: +16dBu to –24.5dBu (LINE, level control knob=min. to max.), -7.5dBu to –50dBu (MIC, level control knob=min. to max.), source impedance: 600 ohm), Audio Inputs 3 and 4 (1/4” phone jacks (unbalanced), input impedance: 10k ohm, max. level: +16dBu, source impedance: 600 ohm), S/P DIF (optical, 24bit, IEC60958, EIAJCP-1201, 48kHz/96kHz)
Control Input: Damper pedal (half damper supported), assignable switch, assignable pedal
MIDI : In, Out, Thru
Interface: Four USB A connectors (for external USB devices, USB2.0 supported)
Disk Drives: HDD (2.5”), CD-R/RW
Power Consumption: 130W
Dimensions: OASYS (76-key): 1,266 (W) x 484 (D) x 135 (H) mm / 49.84” (W) x 19.06” (D) x 5.31” (H), OASYS (88-key): 1,458 (W) x 484 (D) x 135 (H) mm / 57.40” x 19.06” (D) x 5.31” (H)
Weight: OASYS (76-key): 25.6 kg / 56.44 lbs., OASYS (88-key): 32.2 kg / 70.99 lbs.
Accessories: AC cord, CD-ROM for data restoration
*1 Maximum polyphony depends on the kinds of synthesis engines and the number of effects being used.
*2 OASYS dynamically allocates voices to multiple synthesis engines when they are used simultaneously.
*3 The capacity of PCM RAM changes based on the use of Expansion PCM libraries; the total RAM memory capacity will be increased in the near future with a system software upgrade.
OASYS Options: EXB-DI Digital Interface Board
XVP-10 Expression/Volume Pedal
EXP-2 Foot Controller
DS-1H Damper Pedal
PS-1 Pedal Switch
EXs Expansion Samples: Expansion PCM Libraries
EXi Expansion Instruments: Expansion Instrument Libraries
EXf Expansion Effects: Expansion Effect Libraries