Source Audio Spectrum Intelligent Filter User Manual page 37

Frequencies below the cut-off frequency are rolled-off, at a rate of 6 dB/octave. There is a resonant
peak at the cut-off frequency.
High Pass, Peak (mislabeled as Crybaby in current C4 editor)
A Band-Pass is summed with a High-Pass, above the cut-off frequency.
Crybaby (mislabeled as Bandpass 2 in current C4 Editor)
An accurate model of the classic cry-baby wah pedal. The Q control has no effect.
SA248 Spectrum Intelligent Filter User Guide 37