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Kawai K1

 

 

kawai k1

info Country: Japan
Weight: 6,8 Kg
Dimensions: 936 (w) x 260 (h) x 80 (d) mm
audio demo trend price : 150€
manual factory patches demo video comments

The Kawai K1
Digital Synthesizer (1988)

 

Cult lo-fidelity synthesizer based on 8-bits short-cycled waveforms.

A must for noisy textures and raw sounds. Sadly the K1 misses filter structure, later implemented on revamp model k4.

k1
kawai k1

info KEYBOARD 61 keys with velocity and aftertouch.
Main panel features a 16 x 2 lines display, 26 buttons, a data slider, a vector joystick and 2 wheels for pitch bending and modulation.

Back panel terminal connectors:
- Midi interface
- main out
- AUX out
- footswitch pedal input.

acPower supply is external with 12V DC - any general PSU AC/DC 9/12V is ok with correct polarity -)+ and amp rate.

 



edit TECH
a 8-bits cpu NEC D78310G manages up to 16 oscillators or voices polyphony- relative DAC is a uPD-6355G.

STRUCTURE
Each K1 voice is composed by a maxium of 4 assigned waves or SOURCES.
K1 ROM contains 256 waves at 8-bits resolution organized in 2 families:
- VM cyclic waveforms 204 waves: generated by additive synthesis process out of 128 harmonics
- PCM acoustics: 52 waves sampled from true percussions & drums.



pcm
demo hear all PCM waves / some VM waves

 


wavetable
VM SYNTHESIS the VM cyclic wave groups is composed by 2 sub-categories:
- BASIC classic basic waveforms e.g square, saw and sine.
- FREQUENCY RANGE are spectral transients e.g piano, strings, brass, lead, bell and organ.

signal flow




adsr PERFORMANCE machine manages up to 8 parts with individual parameters:
- keyboard zone assign
- voices reserve (priority)
- mix gain level
- Midi channel assign
- semitone transpose
- pitch tune.

 

kawai k1 tech



adsr ENVELOPE
a 4-segments + 1 time EG DADSR for each source.
The vector joystick controls a global mix amplitude EG moving between 4 oscillators.
There are 18 preset velocities curves and no possible edit.

decay

lfo LFO a single oscillator (4 shapes: triangle, saw, square and random) modulates 2 main destinations:
- LFO to pitch
- LFO to amplitude.

lfo
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.


lfo


 

memory MEMORY (RAM chip is a NEC D4464C9):
- 64 RAM standard patches
- 32 RAM multitimbral
RAM is doubled with memory card model DC8, also compatible with DC16 and DC32.
Battery replacement: soldered lithium battery 3V Cr-2032 (check out below)


internal k1



memory MODIFICATION

kawai k1 circuit bent!

K1m model has been mutilated and bent: sound is just crazy!

hear the demo.




 

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 machines

kawai k1 k1 II family

k1r rackmount version without joystick

 

k1m laptop version

 

 

 

K1 II: reverb and new drum waveforms

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


 

effet VST PLUGIN / SAMPLED VERSION no K1 VST plugin emulation for the moment, just some free and commercial samples set:

  name price demo
cycled waves kungrille free
(cycled waves)
n/a



 

demoAUDIO DEMO

demo a full track made only with K1
demo full track sent 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 theme)
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: ring mod first VM1 / VM2 then s1>s2
demo XP: all LFO waves
demo XP circuit bend K1 demo



video VIDEO SELECTION

Kawai K1 Synthesizer 1985 Demo Kawai K1 Synth Demo Kawai k1 100% sounds
1985 Demo Synth Demo 'know that one!

Company: Kawai
Model: K1
Class: Synthesizer
Keyboard: 61 keys
Dates: 1988
Price: 150€
Synthesis: PCM rompler
N.waves: 256 PCM
Resolution: 8 bits
Oscillator: 4 PCM
Polyphony: 16 voices
Multitimbric: 8 parts
LFO: 1
modulator
Envelope: 4 DADSR
CPU: D78310G
Memory: 64 slots
Demo: 22

 

 

manual
MANUAL

manual
SERVICE MANUAL

manual
FACTORY PATCH

signal flow
KAWAI K1 SO 1.3 BIN FREE DOWNLOAD

manual
-FREE SAMPLE SET

k1 banner

 

original scan
wavetable original brochure

 

original scan
wavetable original brochure

 

original scan
wavetable original brochure

 

original scan
wavetablewavetablefun cover

k1 banner


K1 FOR SALE:

for saleCHECK OUT EBAY OFFERS

 

 

kawai eporm motherboard p106
awardSPECIAL AWARDS:

solid

solid
CHEAP as HELL LOFI Killer

comment


REVIEW "The k1 is one of a kind for noisy textures. Don't be fooled by presets and give a good edit! you can buy it for 2 peanuts"

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

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kawai k1 4.0 out of 5 based on 26 ratings. price €100