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Synthesis Technology EDS (Enhanced Definition Synthesis)
MMT (Multi Modeling Technology) sound generator can be added by installing the optional EXB-RADIAS 

Sounds
Programs
1,664 user locations, 1344 preloaded ( EDS: 1,216 +RADIAS: 128) (with EXB-RADIAS option installed)
Combinations 
1,792 user locations, 416 preloaded
Drumkits
144 user locations, 32 preloaded
GM
256 GM2 programs, 9 GM2 drum kits
Tone Generator
640 Mbyte (when converted to 16-bit linear format) (256 Mbyte internal, and 441 Mbyte EX-USB)

1,077 Multisamples including 7 stereo

1,609 Drum Samples including 116 stereo

PCM expansion options
• EX-USB-PCM01: Brass and Woodwinds 1 approximately 128 Mbyte (when calculated as 16-bit linear), 59 multisamples (including five stereo)

• EX-USB-PCM02: Brass and Woodwinds 2 approximately 128 Mbyte (when calculated as 16-bit linear), 47 multisamples

• EX-USB-PCM03: Stereo Grand Piano approximately 128 Mbyte (when calculated as 16-bit linear), 10 multisamples (including five stereo)

• EX-USB-PCM04: V1 Stereo Piano approximately 57 Mbyte (when calculated as 16-bit linear), 8 multisamples (including four stereo)


These can be used by loading them into RAM memory. The standard 64 Mbyte RAM memory allows only one title to be loaded. If the EXB-M256 (option) is installed, the three titles can be used simultaneously.
Maximum Polyphony
120 voices, 120 oscillators max, single mode
60 voices, 120 oscillators max, double mode*
* The actual maximum polyphony will vary depending on oscillator settings such as stereo multisamples and velocity crossfading. 

Program Structure (EDS)
Oscillator
OSC1 (Single), OSC1+2 (Double)
Stereo multisamples are supported
4 velocity zones per oscillator, with switching, crossfades and layers.
Filters
Four types of filter routing (single, serial, parallel, 24 dB)
Two multi-mode filters per voice (low pass, high pass, band pass, band reject)
Driver
Per-voice nonlinear driver and low boost
EQ
Three bands, with sweepable mid 

Modulation
For each voice: 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 Structure Up to sixteen timbres
For each Timbre: keyboard and velocity split/layer/crossfade
INT, OFF, EXT and EX2 MIDI status settings
3-band EQ with sweepable mid
Pitch/Transpose
Use OSC1, 2 or Both
Force Osc Mode (PRG, MONO, LEGATO, POLY)
Portamento and Bend range settings
Controller filters
Modifications to the program settings via the Tone Adjust function 

Drum Kit StructureStereo and mono drum samples
4-way velocity switches with crossfades and adjustable crossfade shapes (Linear, Power, Layer)
Exclusive keygroups
Per key 3-band EQ, Drive, Lo Boost, filter and level offsets

Sampling 16-bit, linear, 48 kHz mono/stereo sampling
Resampling available (Open Sampling System)
64 Mbyte memory standard (expandable up to 320 Mbyte with EXB-M256 option)

Sampling Time (RAM)
RAM1 (64 Mbytes standard) allows up to approximately 11 minutes 39 seconds of mono sampling or approximately 5 minutes 49 seconds of stereo sampling. 512 bytes are used by the system.
RAM2 (256 Mbytes when the EXB-M256 is installed) allows up to approximately 46 minutes 36 seconds of mono sampling or approximately 23 minutes 18 seconds of stereo sampling.
RAM1+RAM2 (Total 320 Mbytes) allows up to approximately 58 minutes 15 seconds of mono sampling or approximately 29 minutes 7 seconds of stereo sampling. (Continuous sampling across RAM1 and RAM2 is not possible.)

Sampling Time (MEDIA)
Maximum sampling time to a USB storage device is a maximum of approximately 80 minutes for one sample file, for either mono or stereo. This occupies approximately 440 Mbytes for mono, or 879 Mbytes for stereo.
1,000 Multisamples, 4,000 Samples, 128 indexes per sample
Supports Korg format, AIFF, WAV, AKAI S1000/S3000 (with advanced Program conversion), SoundFont 2.0 reading
Sample directly from audio CDs (CD-DA) Time Stretch, Time Slice, Crossfade Loop, and other editing features

Effects5 Insert Effects (stereo in/out), 2 Master Effects (stereo in/out), 1 Total Effect (stereo in/out) are available simultaneously
2 effect control busses, 2 effect common LFOs
170 types (can be used for Insert/Master/Total.) Note: double-size effects cannot be used as a Total effect.
Effects Presets: Up to 32 per Effect, 700 effect presets
AUX bus: Two internal buses for sampling and routing audio to the EXB-RADIAS
3-band Track EQ (High, low, and sweepable mid band) Per Program in Program Mode, per Timbre in Combination mode (16 total), and per Track in Sequencer mode (16 total) 

X-Y control X-Y MODE The TouchView display can be used as an X-Y controller. Hold function provided.

X–Y Motion function
X–Y Control finger movements can be recorded in realtime, and memorized for each Program, Combination, or Song. 

Program mode
Oscillator volume, synth parameters, and effect parameters can be controlled.

Combination, Sequencer modes
Timbre/track volume, synth parameters, and effect parameters can be controlled.

Sequencer 16-track MIDI sequencer with 480 ppq resolution
128 Songs, 20 Cue Lists, 210,000 notes (max)
Tempo: 40.00 – 300.00 BPM (1/100 resolution)
16 preset/16 user Template Songs
522 preset patterns, 100 user patterns (per Song)
Cue List function: 20 cue lists, Songs can be arranged consecutively or repeatedly in up to 99 steps, A cue list can be converted back into a song
Standard MIDI File (SMF) format 0 and 1 available
In-Track Sampling function
Auto Song Setup function (One Touch Record) for easily going from a Program or Combination into “record-ready” status 
 
RPPR (Realtime Pattern Play/Recording) A set of 100 patterns are available per Song 

Drum Track 671 preset patterns/1,000 user patterns
Patterns created in Sequencer mode can be converted to drum track user patterns
Trigger Mode (Immediate, Wait for Keyboard), Sync (On, Off) and Zone (Key and Velocity) settings can be specified
Program selection, 3-band EQ and effect bussing available 

KARMA One KARMA module available in Program Mode, four KARMA modules available in Combination and Sequencer Modes, plus Master Control module
2,093 preset GEs (Generated Effect)
1024 user GE locations
Controllers: ON/OFF, LATCH, MODULE CONTROL, KARMA SLIDERS 1–8, KARMA SWITCHES 1–8, KARMA SCENES 1/5–4/8 (8 scenes)
KARMA Wave Sequence, Freeze Randomize, Time Signature Control, Auto RTC (Realtime Control) Setup

Controllers Control Assign
(T1–8, T9–16, INPUTS), REALTIME CONTROL, EXTERNAL, TONE ADJUST, KARMA 

Control Surface (8 sliders, 8 switches)
8 Switches:
MIXER… PLAY/MUTE (SOLO)
REALTIME CONTROL= IFX1–5, MFX1, MFX2, TFX on/ off
EXTERNAL= External MIDI control*
TONE ADJUST= Control the Tone Adjust functions
KARMA= KARMA control
8 Sliders:
MIXER= Volume
REALTIME CONTROL= Realtime modulation
EXTERNAL= External MIDI control*
TONE ADJUST=Control the Tone Adjust functions
KARMA= KARMA control
* In External mode, the eight sliders, eight switches, and eight pads can be used as MIDI controllers, allowing you to control software synthesizers or DAW software via CC settings. 128 setups can be stored (102 are preloaded).
8 velocity-sensitive drum pads and chord triggers:
[KARMA ON/OFF]
[KARMA LATCH]
[CHORD ASSIGN]
[DRUM TRACK ON/OFF]
[PAD MODE] - selects velocity-sensitive or fixed-velocity operation
[KARMA MODULE CONTROL]
[RESET CONTROL]
X-Y Control (Display), Hold, Motion 

Media Load, Save, Utility, Make Audio CD, Play Audio CD Data Filer functionality (Save and Load MIDI System Exclusive Data)
CD-ROM/R/RW (UDF Format read/write), Record & Play audio CDs (CD-DA), ISO9660 Level 1
WAVE file editing functionality
CD-ROM/R/RW can be used when a commercially-available USB drive is connected. 

Audio OutputsL/MONO, R - 1/4" TS (Mono), unbalanced
INDIVIDUAL-1, 2, 3, 4 - 1/4" TS (Mono), unbalanced
Output Impedance: 1.1k Ohm stereo; 550 Ohms mono (L/Mono only), Nominal Level: +4.0 dBu, Maximum Level: +16.0 dBu, Load Impedance: 10 k Ohms or greater, Signal to noise ratio: 90 dBu (typical), Dynamic range: 91 dBu (typical)
S/P DIF (optical 24-bit, 48 kHz), S/P DIF IEC60958 EIAJCP-1201, provides igital output of the same signals as AUDIO OUTPUT (MAIN) L/Mono, R
(Optional) EXB-FW - 6 channels, 24-bit, 48 kHz Sample rate, provides digital output of the same signals as AUDIO OUTPUT (MAIN) L/Mono, R and AUDIO OUTPUT (INDIVIDUAL) 1–4
Headphones - 1/4" TRS (Stereo), Output Impedance: 33 Ohms, Maximum Level: 32+ 32 mW @33 Ohms

Audio Input 1, 2 - 1/4" TS (Mono), unbalanced
(level switch (MIC/LINE), level knob) - Input Impedance: 10 k Ohms, Headroom:12 dB, Input level range
LINE: –29 dBu – +4 dBu or greater (typical),
Input level range MIC: –54 dBu –17 dBu or greater (typical), Source Impedance: 600 Ohms
S/P DIF (optical 24-bit, 48 kHz) IEC60958 EIAJCP-1201
(Optional) EXB-FW - 2 channels, 24-bit, 48 kHz Sample rate

MIDI IN, OUT, THRU 

Computer
2 USB type A hi-speed connectors, supporting 480 Mbps (for storage devices)
USB type B connector (for MIDI interface, USB 2.0 supported)
2 FireWire ports (when EXB-FW (separately sold option) installed)
Keyboard
To KYBD (for connection to keyboard assembly unit) 

System Requirements
Computer with the KORG USB-MIDI Driver
Windows
Microsoft Windows XP Home Edition/Professional Service Pack 2 or later (MIDI Driver for the 64-bit editions is a Beta version), all editions of Microsoft Windows Vista (MIDI Driver for the 64-bit editions is a Beta version), computer supports Windows XP/Vista with USB port (Intel USB Host Controller recommended).
Macintosh
Mac OS X 10.3.9 or later, Apple Macintosh with USB ports supports Mac OS X 10.3.9 (PowerPC/Intel-based supported).
Please use the latest Korg USB/MIDI driver.
M3 Editor/Plug-In Editor
Windows
Windows XP Home Edition / Professional Service Pack 2 or later, Intel Pentium III/1 GHz or faster, 512 Mbyte or larger memory (1 Gbyte or larger recommended.) After a Vista Compliant version of the application is released, we will perform an operational check.
Macintosh
Mac OS X 10.4 or later, G4/800 MHz or faster (Intel-based Mac supported, G5 and/or Core Duo recommended), 512 Mbyte or larger memory (1 Gbyte or larger recommended)
Computer with the EXB-FW
Windows
Microsoft Windows XP Home Edition / Professional Service Pack 2, computer supports Windows XP with Firewire port.
Macintosh
Mac OS X 10.4 or later, Apple Macintosh with Firewire ports supports Mac OS X 10.4 (PowerPC/Intel-based supported). 

Options EXB-FW
The EXB-FW FireWire Expansion Board option provides 2 channels of digital audio Input and 6 channels of digital audio Output, in addition to FireWire MIDI for the Korg M3 Music/Workstation.
M3 Operating System Version 1.10 or higher is required to use the EXB-FW.
Mac Users: Mac users will need to update to Leopard or OS 10.4.11 to use the EXB-FW.
EXB-M256
The EXB-M256 is a proprietary RAM expansion for use with the M3 Music/Workstation’s sampling and future PCM expansion capabilities. It adds 256 Mbytes of memory for a total memory spec of 320 Mbytes.
EXB-RADIAS
The optional EXB-RADIAS is a 24-voice, 4-part multi-timbral (1 timbre per Program, up to 4 Programs can be used in Combi and Sequencer modes) RADIAS Synthesizer Board for the Korg M3 Music/Workstation. This powerful MMT-based (Multiple Modeling Technology) synth engine features dual oscillators which combine to offer analog-modeled waves, PCM waves, noise, ring mod and more. Waveform modulation, Variable Phase Modulation (VPM), Unison voice thickening, PWM and cross-mod expand the sonic palette. The EXB-RADIAS offers the same vocoder as the RADIAS, offering 16 bands with individual control over level and panning. Internal or external audio can be run through the EXB-RADIAS to be gated and filtered using the internal synthesis and effects.
EX-USB-PCM series
PCM Expansion USB Memory devices
XVP-10
EXP/VOL Pedal
EXP-2
Foot Controller
DS-1H
Damper Pedal (supports half-damping)
PS-1
Pedal Switch 

General Keyboard
61-key, 73-key semi-weighted synth action (Korg’s new keyboard design)
88-key weighted action (RH3: Real Weighted Hammer Action 3 keyboard with 4-zone graded action response)
Controllers
Joystick, Ribbon Controller, [SW1], [SW2]
Interface
To Module (for connection to M3-M tone generator module)
To Module (second) (available on 73-key and 88-key)
Display
5.7 inch color TouchView™ GUI, 320 x 240 dot, X–Y control function
Control Inputs
Damper Pedal (half damper pedaling supported), Assignable Switch, Assignable Pedal
Common specifications
Frequency response: 20 Hz–20 kHz, +/-1.0 dB, 10 k Ohms load
THD+N: 20 Hz–20 kHz, 0.08 % 10 k Ohms load (typical)
Included Accessories
Three-Pronged IECC13 Power Cable
(Model D8B5518003B)
Owner’s Manual (M3 Operation Guide)
CD-ROM (M3 Parameter Guide (PDF)
Voice Name List (PDF)
KORG MIDI driver
M3 Editor stand alone and plug-in versions
Bracket (Module only)
Dimensions
Module:
26.50"(W) x 7.95"(D) x 3.23"(H)
M3-61 and Module:
40"(W) x 14.65"(D) x 4.76"(H) (module down)
40"(W) x 14.65"(D) x 6.73"(H) (module up)
M3-73 and Module:
46.81” (W) x 14.60” (D) x 5.15” (H)(module down)
46.81” (W) x 14.60” (D) x 8.14” (H)(module up)
M3-88 and Module:
56.10” (W) x 17.40” (D) x 5.15” (H)(module down)
56.10” (W) x 17.40” (D) x 8.14” (H)(module up)
Weight
M3-61: 31.08 lbs (14.1 kg)
M3-73: 38.14 lbs (17.3 kg)
M3-88: 58.42 lbs (26.5 kg)
Module: 10.58 lbs
Current Consumption
35 Watts