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Subject: Re: Update/GX-1 VCF info

From: "supisuzoi" <son_of_zoggs@...>
Date: 2004-05-04

can we hear some audio samples from the gx-1?

kevin


--- In motm@yahoogroups.com, synth1@a... wrote:
> >
> > What makes the GX-1 VCF unique? How does it compare to the CS-80
> > filter? (I thought that they were similar!)
> >
>
> Sounds completely different, due to completely different filter topology.
> The CS-80 VCF is a "standard" OTA-based state-variable filter (2 of them
> in parallel, in fact). The GX-1 VCF is a Sallen-Key "diode" filter (the
> filter's cutoff frequency is changed by modulating matched currents in a
> set of diodes).
>
> Paul S.