Discussion about the Korg PolySix synthesizer

Sorry, but the after dynamic effects low pass is intended as a 
noisereduction for the effects section. It may happen that its cutoff is 
set too low due to the deviation of the caps values. In this case you 
may reduce C67 and C72 to 360p or 220p. But I would never bypass them, 
because this will increase the noise significantly when the effects 
section is enganged and no notes are played.