Discussion about the Korg PolySix synthesizer

I have attached a sample of what it sounds like. Maybe it can help.

/Frank

On 08/27/2017 05:15 PM, Frank Carvalho dko4342@vip.cybercity.dk 
[PolySix] wrote:
>
> Fired up my P6 today, as it has been too quiet for too long, but found
> that it had a strange kind of background noise. After opening the filter
> entirely, no resonance, bypassing the FX, setting the VCO to PW, pulse
> around 4, it is very obvious, that two keys pressed produce a sort of
> ghost note, that sounds like a multiple of the frequency difference
> between the two keys, like a sort of cross-modulation. If I press E6 and
> F#6, I can also hear an E3. The ghost note is also there using a saw
> wave, just not so prominent.
>
> I don't think it's suppose to do this. What could be the reason for
> this, and how do I fix it?
>
> Thanks
>
> Frank
>
>