Hi,

I seem to be having a problem with my A-105  SSM LPF.

If I modulate either of the cut off  (FCV1/FCV2) inputs with any shape from an LFO, I get a loud audible click coming from the filter  as the LFO goes through it's cycle - with audio going in to the filter or not... also with resonance set to zero or otherwise.

I have tested other Doepfer filters with the same lead/LFO/ etc and the problem does not materialise.

Any suggestions, please.

Best wishes