Korg Poly800/EX800 Users

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.


Mike



________________________________
From: john m <jmaddocks1975@...>
To: korgpolyex@yahoogroups.com
Sent: Thu, June 2, 2011 6:48:14 AM
Subject: [korgpolyex] Re: HPF?

  
Sounds interesting, does the poly800 have a high pass on the circuit already?

--- In korgpolyex@yahoogroups.com, "k9k9dog" <domgoold@...> wrote:
>
> what do people think about (the possibility of) a HPF?
> i've been studying the Juno quite closely for a few weeks, 
> especially the 'hpf', which is in fact a switch with 4 
> settings, inserted in the path *after* the lpf(although it 
> appears to be before, on the panel).
> 
> i don't know how the korg filter would lend itself to this, 
> but with a juno it can be helpful as a lowcut(and lowest 
> setting is a 'bass boost' using a bandpass). i've emulated it 
> reasonably successfully in software and understand how it works.
> and if implemented, could be controlled and recalled(or disabled) 
> with logic switching. doesn't seem completely incompatible with 
> korg800 structure at all.
> 
> also wondering about some kind of limiter, as i read atomsmasher 
> saying it's a good thing to have around, with res settings...a 
> simple onboard circuit, is that worth thinking about?
>