Very similar to the Korg Poly/EX 800 and SIEL DK-80.
It is also rebadged as a Suzuki SX-500.
8 Voice in single mode, 4 voice if in dual(stacked) mode.
The filter retriggers on every new note, brittle sound, lacking
in low end.
Every parameter responds to continuous controller messages.
Responds to velocity. .
DCO 1 & 2: saw (16,8,4), square (16,8,4,2), detune, fine
tune
Noise generator, destination VCF or VCA.
Envelope generator A.D.B.S.S.R. Attack, Decay, Break-Point, Slope,
Sustain, Release
LFO 1 (DCO) , LFO 2 (VCF)
Chorus effect.
MIDI: omni on/off, channels 1-16.
Sequencer:
2 seperate tracks. (300 notes, also external gear can be controlled
with it)
Clocks to internal, external (trigger signal) and Midi.
50 patches (40-49 are programmable)
With a RAM pack cartridge you get 50 programmable memories extra
Review
Article of the German Keyboard magazine of november 1985
It's an review/test of the DK-80 and the Expander EX 80
The language is German.
Page
1 (Cool picture!!!)
Page
2
Page
3
Page
4
Usermanual
You can download the DK-80 manual (also on this site). It's allmost
the the same. The DK-80 has some extra features.
You can buy the Schematics at http://www.markglinsky.com/ManualManor.html
Midi implementation and Function sheet
I made a sheet with all functions, parameters, CC's, etc. Download it here (231KB BMP file).
Update 7-5-2006: I have scanned the original program parameter sticker which fits on top of your expander.
Everybody need this!!! Just print it, cut it and stick it on your expander.
Press to download
Patch for Clavia Nord Modular G2, get it here. Thanks to Sebastian Berweck
Picture Gallery
All these pictures wher taken from a Suzuki SX-500. But the only difference
is the brand and model name.
Press the pictures for bigger ones
Siel Expander 80 / Suzuki SX-500 Power supply
If you got this synthesizer but don't have the power supply, this page
Don't know for sure if the DK-80 powersupply has the same specifications.
The power supply is a AC/AC adapter which converts the mains voltage
to 16 V AC @ 500 mA.
Press pictures for close-ups
Rampack
This cartridge gives 50 extra programmable memories.
Press for bigger picture
There was this handy person which I sent some info about the RAM cartridge and he did a a nice remake.
Here's a picture:
The good news is that you can buy some orginal RAM and ROM cartridges from www.vintageplanet.nl
hopefully supply enough information to build one yourself:
I'll find that out later.
The supply simply consists of a transformer and a 5 pin DIN plug,
mounted on a little PCB.
An electronics shop will sell both the transformer and the DIN plug
As you can see on the picture there a battery (3V) inside.
Please check the battery condition. I don't now if it is possible to
change
the battery without loosing the patches. Maybe if you do it really
fast :)
Unfortantly his emailadres (electronicus@freemail.nl) is not working anymore. Please contact me!
