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Korg M1




Korg m1
info Country: Japan
Weight: 13 Kg
Dimensions: 430x 405x 88 mm
audio demo trend price : 200€
manual schematic.zip factory patch demo video comments

Music Workstation (1988)


The M1 is world's top selling with even more units sold than Roland D-50 or Yamaha DX-7.

The M1 syntesizer represents most of the nineties music from world to dance.

music workstation
m1 edit

info KEYBOARD 61 velocity keys with aftertouch.
Main panel features a 16 X 40 display, 33 push buttons and 1 data slider, on the left side a single joystick for pitchbending and Sweep Filter modulation control.

Back panelterminal connectors:
- PCM card slot
- headphones out
- Midi interface
- Main out
- AUX out
- 1 damper pedal input
- 2 pedal inputs assignable to program change, start-stop, bypass or cutoff.


edit VOICES cpu NEC-V50 (part of 70216 family) manages 16 voices polyphony based on 16 bit AI System subtractive synthesis - M1 DAC is a Burr Brown PCM 54HP.
A basic patch is composed by 1 or 2 PCM (single/double) samples with individual settings:
- pitch detune
- stereo panning
- volume
- delay start.



waves WAVETABLE 4 Mb ROM contains 149 waveforms organized in 3 categories:
- 75 PCM acoustic: acoustic instruments including strings, violins, sax and piano
- 44 PCM drum: percussions and chromatic
- 30 PCM DWGS: pre-calculated mathematically generated waves like additive harmonic, vocal formants and traditional basic waves like sine, saw or pulse.
TECH: DWGS were originally developed on previous model Korg DW8000.



waves EX UPGRADE standard wavetable can be expanded to EX with further 4 Mb PCM, in this case the rackmount became M1EX (EX upgrade is factory native in successive T series).
Even more waveforms can be added using Korg M1 PCM cards or others AI2 compatible Korg systems like Korg M3r orWavestation. Here's the list of the official cards, but there are plenty more from third-part :

MSC-01S; MPC-01S Variety
MSC-02S;  MPC-02S Synth 1
MSC-03S;  MPC-03S Drums 1 FOR SALE!
MSC-04S;  MPC-04S Orchestra
MSC-05S;  MPC-05S Piano
MSC-06S;  MPC-06S Fretted Instruments FOR SALE!
MSC-07S; MPC-07S Synth 2
MSC-08S; MPC-08S Percussion
MSC-09S; MPC-09S Organ
MSC-10S; MPC-10S Ethnic 1
MSC-11S; MPC-11S Brass FOR SALE!
MSC-12S; MPC-12S Synth 3
MSC-13S; MPC-13S Ethnic 2
MSC-14S; MPC-14S Sound Effects
MSC-15S; MPC-15S Drums 2
MSC-16S; MPC-16S Environment

m1 cards


performance PERFORMANCE the COMBI mode manages up to 8 parts at the same time with individual parameter settings:
- aftertouch assignable to Cutoff / EG AMP / LFO pitch/ or LFO filter
- Midi channel
- volume mix
- transpose
- detune
- zone split
- velocity split
- damper on filter
- scales one microtonal user-free slot + 4 ROM presets: equal temp 1-2 pure major-minor.


filter FILTER
section is the VDF Variable Digital Filter is a non-resonant lowpass filter with Keytrack function.


up to 6 EGs:
- VDA amplitude : OSC1 and OSC2 4 segments + 2 times
- VDF filter: OSC1 and OSC2 4 segments + 4 times
- Pitch EG: :OSC1 and OSC2 4 segments + 2 times.


lfo LFO
there are 2 delayed and syncable modulators called MG (shapes: triangle, saw up, saw down and square)
- MG1: modulates OSC1-OSC2 pitch
- MG2: modulates filter VDF.


fx EFFECT DSP manages double 16-bits sound processors combined in parallel or serial mode.
There are mainly 9 categories effects: reverb, delay, overdrive, equalizer, chorus, leslie, phase shifter, frequency exciter and flanger.

edit SEQUENCER works in both real-time or step notes mode (quantizing up to 1/48 resolution) and manages 8 tracks.
MIDI limited CC# implementation but the exclusive systems are complete.
TIP: the MINDSCOPE function is a neat too for incoming events monitoring.

m1 rec



RAM: 100 patches
RAM: 100 combi
RAM: 10 songs + 100 patterns 4400 notes (7700 reducing memory balancing between patch- combi).
Sounds can be saved using special MCR03card.
Battery replacement: internal battery is a 3V lithium CR-2032 with holder, it is quite common and easy to replace.

internal m1

family EDIT: several editors for M1/M1r :
- Emagic Soundiver (out of business)
- Midiquest (commercial PC/MAC)
- M1LibEd (shareware, old PC) - PIC
- M1 Manager (commercial, PC) - PIC
- Caged m1 (now free, Atari ST)- PIC

korg m1 editor




family Related M1 models:

related family

M1R expander module version.

korg t series

T series upgraded to EX memory, some versions can also import samples VIDEO

KORG T1 (EX) (88-notes weighted piano keyboard)
KORG T2 (EX) (76-notes keyboard)
KORG T3 (EX) (61-notes keyboard)

korg m3r M3R a slimmed m1 / m1 version with similar sound but different structure
Korg M01D M01D a m1 software for the handheld console from Nintendo. VIDEO
Also Korg IM1 for Apple IOS VIDEO

VST PLUGIN / SAMPLED VERSION there are some free and commercial samples set:

  name download link demo
free m1r samples FREE "LORE"

Kontakt sampleS

FREE a gift from polynominal.com

Other third-part samples:
- piano samples
-39 drum samples
dexed VST plugin KORG LEGACY collection virtual VST plugin, along with:


demoAUDIO DEMO (no external PCM cards, no effects)

demo favourite : universe lore classic
demo favourite : quite modern !
demo favourite : retro house
demo favourite : performance fx
demo favourite : sinereverb
demo favourite : precint bass
demo piano: pianobar
demo rhodes: plastic ep
demo organ: hammond b3
demo organ: pipe
demo string: pizzicato
demo brass: disco
demo celeste: plum me
demo celeste: magic stuff
demo bass: analog Sh101
demo bass: tb303
demo choir: relax
demo choir: chords
demo choir: another universe
demo choir: performance
demo synth: mystery
demo synth: high lfo
demo synth: delay pitch
demo synth: sequence filter
demo synth: crystal bell
demo synth: suspence
demo synth: whistle
demo synth: panning
demo synth: digital oldies
demo synth: choir DWGS
demo synth: bells and pads
demo synth: 8 bits
demo synth: vangelis
demo synth: syntbassy
demo pad: also modulation
demo pad: clockwork
demo pad: traditional
demo pad: hyper flanger
demo pad: with modulation
demo FX: flanger and delay feedback
demo FX: reverb square
demo percussion: anvil

effethave some nice M1 demos? shar'em UPLOAD




Korg M1 Demo Korg M1 presets Korg M1 Workstation
Demo presets Shadow of the beast M1 mix










korg m1 factory reset

Just load the factory card MPC00P or EX. There is no ROM recall





To know your M1 version just hold INT while turning on the module.

The os is the number after the "#"



m1 logo


original scan
info original brochure



original scan
info original brochure



original scan
info original brochure



original scan
info original brochure



m1 atari st
info m1 + atari st


m1 logo


buy m1 memorry cards





korg m1r for saleCHECK OUT EBAY OFFERS





m1 display m1 motherboard Korg m1 close up


- Classic
- today bargain price


- filter
- some PCm
-fx unit


REVIEW "M1 today sounds maybe a bit outdated but still fascinating and a very programmable machine with character and dynamics in the mix. "



all snapshots*, sounds, texts copyright Polynominal.com / Eric Pochesci


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korg m1 4 out of 5 based on 38 ratings. price €150
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