This pack is a set of resonant second order filters for the MOD FX section of the Prologue.and Minilogue XD.
There are four filters – low pass, high pass, band pass and band reject.
Each filter has the same controls:
Control1 (Speed) sets the frequency of the filter, and can also be modulated with the Mod wheel.
Control 2 (Depth) controls the amount of resonance of the filter.