Filter Gate Filter Section The Filter controls provide controls for the selected filter type. Mode The Filter Mode selector lets you select the type of Filter. Off Provides no filtering. LP Provides a Low Pass filter. BP Provides a Band Pass filter. HP Provides a High Pass filter. Phaser Provides a Phaser. Cutoff The Cutoff control lets you adjust the Filter Cutoff frequency. Res The Res control lets you adjust the Resonance at the Cutoff frequency.