here is a sample to show the dynamic filters in p821...
i use an amplitude sweep of a sine and you see the different filters kick into action at different thresholds...
again, this isn't necessarily accurate in the time domain but you can clearly see what's going on...



(*the peak filters are not the same exact shape because in the frequency plot they are being triggered by a sine wave in band but in the amplitude sweep they are being triggered by an out of band sine wave, so the gains of the filters are different.)