Doepfer

Hi

Can someone tell me if my A102 filter is acting correctly - The resonance seems to be set really high.  The filter will self oscillate with the resonance set to just 4 (when the cut off is set between 3 and 6).

Is this normal?

As a result of this the range of usable resonance is really low and there is a sudden change in sound from zero resonance to a setting of 1.

Is there any way to adjust the resonance to a more usable range?

Or is the filter faulty?

Thanks

Mick