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Kawai K1M



kawai k1M

info Country: Japan
Weight: 1,3 Kg
Dimensions: 370 (w) x 260 (h) x 80 (d) mm
audio demo trend price : 150€
manual factory patches demo video comments

Kawai K1M
Digital Synthesizer Module (1988)


K1 Module version, classic budget digital synthesizer based on 8-bits short cycled waves.

k1 and k1m
kawai k1m tech

info SOUND MODULE The main panel features a 16 X 2 lines backlit display, 25 buttons, a slider edit for data entry and a vector joystick for volume mix.

Back panel terminal connectors:
- Midi Interface
- main signal out
- headphones out.

acPower supply is external with 12V DC / 500mA - any general PSU AC/DC 9/12V can work with correct polarity -)+


edit TECH a 8-bits cpu NEC D78310G manages up to 16 oscillators or voices polyphony- relative DAC is a uPD-6355G. Each K1 voice is composed by a maxium of 4 assigned waves or SOURCES with a simple ringmodulator (fixed depth) which modules the sources.

pcm demo hear ringmodulator


wavetableWAVETABLE ROM contains 256 waves at 8-bits resolution organized in 2 families:
- PCM acoustics: 52 waves sampled from true percussions & drums.
- VM cyclic waveforms 204 waves: generated by additive synthesis process out of 128 harmonics
composed by 2 sub-categories:

signal flow

* BASIC classic basic waveforms e.g square, saw and sine.
* FREQUENCY RANGE are spectral transients e.g piano, strings, brass, lead, bell and organ.

demo hear all PCM waves / some VM waves



adsr PERFORMANCE machine manages up to 8 parts with individual parameters:

kawai k1m

- keyboard zone assign

- voices reserve (priority)

- mix gain level

- Midi channel assign

- semitone transpose

- pitch tune.

a 4-segments + 1 time EG DADSR for each source.
There are 18 preset velocities curves but no possible edit.



LEFT - Vector joystick controls a global mix amplitude EG moving between 4 oscillators

demo hear pad vector


lfo LFO
a single oscillator (4 shapes: triangle, sawtooth, square and random) modulates 2 destinations:


- LFO to pitch
- LFO to amplitude

demo HEAR all lfo WAVES

midi MIDI
standard implementation with just a few CC# but full compliant to Midi Exclusives data for both edit and backup.

memory MEMORY
- 64 RAM standard patches
- 32 RAM multitimbral
RAM is doubled with memory card model DC8, also compatible with DC16 and DC32.

k1m motherboard

- LEFT - Battery replacement: soldered lithium battery 3V Cr-2032

- click to enlarge pic -


kawai k1 circuit bent!

K1m model has been mutilated and bent: sound is just crazy! hear a demo.

memoryLast modified K1m ha been sold. Time for another project, thanks :)


memory EDIT there are some editors like:

- soundquest (mac/pc) PIC
- soundiver (mac/pc)
- soundlib (pc)
- caged artist (Atari ST) PIC
- K1 edit (Atari ST) shareware) PIC
- Kawai K1 editor (Commodore Amiga) PIC
atari st k1 edit


memory K1 related models:

kawai k1 k1 II family



K1 original keyboard version.

k1r rackmount version without joystick

K1 II: reverb and new drum waveforms

K1 rII: rackount version of K1 II minus joystick and effect DSP



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

cycled waves kungrille free
(cycled waves)



demo a full track made only with K1
demo full track by Justin Noyce *thanks*
demo ambient: 4 bits pad
demo ambient: lo-fi choir
demo Vector: strings
demo Synth: obx
demo Synth: crystal whine
demo Synth: square (space harrier)
demo Multi mode 1 demo
demo Noise: ringmodulator
demo Noise: ringmodulator 2
demo piano acoustic
demo piano: EP rhodes
demo organ: farfisa like
demo brass: saturday night show
demo harp: the avatar stones
demo percussion: General Rico
demo XP: all PCM waves
demo XP: first VM waves
demo XP: ringmod VM1 / VM2 then s1>s2
demo XP: all LFO waves
demo XP circuit bend K1 demo


KAWAI K 1-M DEMO 2012 Kawai K1M demo Kawai k1 100% sounds
DEMO 2012 demo demo polynominal

Company: Kawai
Model: K1M
Class: Synth Module
Dates: 1988
Display: 16 x 2 lines LCD
Synthesis: PCM rompler
Polyphony: 16 voices
N.waves: 256 PCM
Resolution: 8 bits
Multitimbric: 8 parts
LFO: 1
Envelope: 1 EG
Vector control: joystick
Memory: 64 slots
CPU: D78310G
DAC: uPD-6355G
Demo: 22


k1m full hd
wavetable HD PIC





kawai k1m
500 free sounds
for k1 k1m k1r - all card dumps.



original scan
wavetable original brochure


original scan
wavetable original advert


original scan
wavetable original brochure


original scan
wavetablewavetablefun cover


original scan
wavetablewavetablea k1m synthcat!







kawai eporm motherboard p106


Bang for the Buck LOFI Killer


REVIEW "The k1m is a classic for Lo-fi sounds or noisy textures. Don't be fooled by presets and give it a good programming. For unlimited textures bending is a wise choice :) "

manual manual
- bargain price - no filter structure
- Lo-fi industrial sound
- edit


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Kawai K1M Kawai K1m Digital Synthesizer Module
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