Korg Poly800/EX800 Users

Hi, the best group, what I have seen...

i like one filter as well. I got used on reaction of filter EG over 
all voices. 
Anyway i wanted split sound to filtered/unfiltered components. It is 
possible by leading e.g. SIG2 from pin20 of NJM-2069 to new output 
jack. Then you can process this voice indipendently.
But I did it by different way - I passed filter and connected SIG2 
(pin20) to 2069 output (pin6). Of course, it caused (nice) feedback, 
controllable by cutoff knob. If I inserted little capacitor (around 
10pF) between pin20 - pin6, i got sound without feedback. Nice side 
effect of this modification was Prodigy-like distortion, when i 
turned volume higher.


Regarding of dw-8000 I found this 
(http://us.geocities.com/diffused_light/stuff/dw8000.html):

"Internally there are 3 main boards- the digital board, the analog 
board, and the delay board. The digital board has the CPU circuits 
and the oscillators. The CPU is a Hitachi HD63B03X. The "DWGS" 
oscillator system is made up of 8-bit waveforms (multisampled by the 
octave as far as I can tell) stored in 4 256Kbit ROM chips, with two 
custom chips to generate the audio signals from there. The DAC is a 
DAC08, and the output of that is split into 16 separate signals by a 
demultiplexer. There's another 8-bit DAC, an HA17008, for CVs. From 
there it goes through NJM2069AD voltage controlled mixer / filter / 
amplifier chips (which have unusued 2-pole filter outputs) on the 
analog board, then to the delay board, and out. The delay is a 12-bit 
companded delay with a VCO-based clock and 16KB of RAM (If I'm 
correct with my math, this means that at maximum delay time, the 
delay sample rate is only 10667 Hz!). A custom chip, the 65010CW-113, 
controls everything."