OK! beware here, though: my question resulted from comparison
with the juno range, and the HPF setup on that is not an
ordinary highpass: it is a 4way switch, 0-3:
3 is the highest HPF setting, 2 lower, 1 is OFF/thru, and
4 is a type of bass boost.
not saying the poly800 needs to emulate a juno, but this is
how that config works. on the JU106/60/6, the HPF comes AFTER
the LPF(and VCA), contrary to what it looks like, and on the
Alpha JU, it comes before.
the bassboost results from a type of LPF/band thing (linkwitz-
-riley?no butterworth!)...here, check this out, if you are on PC
(sorry macz...it is synthedit), it is a plugin i made recently:
http://www.box.net/shared/v6m7j3n5n6'DC0-6' (wa-hey: 1626 downloads as of today...)
it isn't entirely accurate, of course, but you might have
some fun with it. check it out with bomer's mousekeyboard
inputting chords via midi - might give a few thoughts about
chord memories/sequencing, etc.
the ex800, doesn't lack bass, of course, but i reckon this
HPF, allied with some element of? ringmod?/waveshaping? is
what gives the juno it's sound.
an all-the-way HPF could be interesting too. bear in mind that
what i did to obtain the 'bassboost' was entirely separate from
the HPF part.
and if a HPF can be added, why not a multimode?
hpf/more lpf/band pass/reject?
--- In korgpolyex@yahoogroups.com, "zoinky420" <zoinky420@...> wrote:
>
>
>
> --- In korgpolyex@yahoogroups.com, Michael Hawkins <korgpolyex800@> wrote:
> >
> > No, the NJM2069 OKI chip that was custom made for Korg does not have a HPF.
> >
> > I would be willing and able to add both an HPF and a limiter into the AtomaHawk
> > PCB design.
> >
> > But someone else would need to provide the circuit design itself.
> >
> >
>
> There must be some free circuits of those types around?? I was on a DIY effects site a while back that had tons of free circuits for just about everything imaginable.
>