Equalizer crackle

Putting either of the EQs on a track is causing audible crackling. I thought maybe it was a RAM issue so I did a load of purgeing and I’ve got plenty of RAM available in my project. What could cause this? Not all the FX are doing this, e.g. using a compressor is fine.

Maybe a saturation on a frequency band?

Could be Headroom.
If your sample is normalised and very hot, and then you add peaky eq, you might run out of headroom, and get internal clipping.

Try turning the amp vol down, or go in the AED and reduce sample level by 3db.

happens even before i tweak the EQ, which i was assume is unity gain by default? anyway i’ll try lowering the volume in AED…