Korg Poly800/EX800 Users

Hi may be you will interested in my drawing Photos section / poly-800 - wiring modification  . http://groups.yahoo.com/group/korgpolyex/photos/album/2123369380/pic/199866271/view?picmode=original&mode=tn&order=ordinal&start=1&dir=asc
I promised (but unfortunately haven`t time and mainly space to continue) to make and document some rewiring modifications. And drawing shows basic points ,like signal inputs and outputs for parts (DCOs, VCA..). So there`s needed "just" to take some wire, and conect it here and there...  :-)

What I could hear from my Poly800 (except of well known FM-800 and moog slayer):
 - audio in - connected to noise transistor - has large gain (distorts sound)
 - chorus feedback
 - slowed down chorus LFO
 - chorus (actually short delay) not driven by LFO , but manually set
 - filter cutoff and/or resonance driven by LFO
 - DCO2 output bypassed VCF - sound mixed
 - FM800 like , but driven by external audio

All mods were just one-time tries, and I don`t have mounted them as permanent options. 
But anyway, now ,as I can see this list written together, it`s a shame I didn`t made a documentation+sounds. May be, I will find at least some photos...

Jozef

PS: Zdravim pana Forro-a, este vzdy siahnem po niektorej Vasej knihe.



--- In korgpolyex@yahoogroups.com, "k9k9dog" <domgoold@...> wrote:
>
> ok; so single (D)CF, post VCAs. eg, mix pre-filter.then, i guess, 
> another vca to set output level?
> 
> in synthedit, it made sense to share a filter to save cpu on a 
> recent project, but that was pre vca/pan and mix/level.
> 
> interested you say there 8 oscillators, whereas i was suspecting 
> a single osc, with freq/dividing to produce divisions/harmonics. 
> 
> so this could suggest independent outputs and operation? detuning?
> i find the detuning a bit unimpressive, tbh, just semi's, whereas 
> somethign finer could really fatten things up a bit. and phasemod 
> and stuff like that...
> hey, i haven't seen/used my ex800 (poly1) for some time, so i forget 
> a bit. wdf, it has it's own character, within what it has. 
> 
> i'll look for the stuff you mention, but would like something 
> 'from the horse's mouth', eg this group of interested users, 
> from the circuit-bending viewpoint, for purpose of discussion. 
> (i ain't going in there messing things up)
> 
> my main reference atm is synthedit, which has allowed me to 
> experiment with things like phase etc. just means i can plug 
> things in without breaking anything...
> 
> 
> --- In korgpolyex@yahoogroups.com, Paul Cunningham <paul@> wrote:
> >
> > the main difference with the Poly-800 series as opposed to other polysynths of the era is that all eight oscillators are first routed through their own amplifier, and then through a *shared* 4-pole filter. this makes it a unique instrument to play harmonically -- something between a polysynth and a monosynth. all of the other synths you mentioned use the more traditional polysynth architecture which provides each voice it's own filter and amplifier, with the filter before the amplifier. -pc
> > 
> > 
> > On Feb 14, 2011, at 3:44 PM, k9k9dog wrote:
> > 
> > > wondering what a block diagram of this synth 
> > > would look like. as in, a kind of signal flow 
> > > diagram or something like that.
> > > 
> > > just wondering about theoretical possibilities
> > > (and impossibilities) for future ideas;
> > > for instance, taking separate harmonics and 
> > > rerouting them, ringmod options, stuff like that?
> > > 
> > > i'd like to know more about what's going on inside, 
> > > how it compares,say, to juno's jp's and jx's. some 
> > > kind of assessment/description of the osc+filter etc. 
> > > circuitry.
> > > 
> > >
> >
>