[PaulDavisThe1st]

There are egregious DSP errors, including zipper noise and flat-out incorrect EQ-ing, plus they are one of the most reliable sources of crashes for Ardour users (at least). There are better alternatives even just within libre-space for everything that CALF does (they do, however, look very nice).

[wastholm]

Thanks, I'll keep this in mind. (I have given some Calf plugins some light usage in Qtractor without noticing any obvious problems.)