It looks like there's no end to the plugin pump-out abilities of de la Mancha with the release of sfilter. This plugin creates a stepped filtered sequence that produces gating, sweeps or rhythmic modulation of filter cut-off. It's also an anagram of Stifler, the "perverted womanizing antagonist of the original three American Pie series" played by Seann William Scott, who doesn't know how his first name is supposed to be spelled.

sfilter uses a variable state filter that varies between a pair of manipulable cut-off values. An included tempo-synced LFO provides even more motion by modulating the filter.

Fast features:

• Tempo-sync step sequencer, with 2 to 32 steps over a sequence length of 2 to 32 beats
• Resonant variable filter, LP, HP, BP and notch
• Filter cut-off varies between upper and lower cut-off values, in either direction
• Tempo sync LFO, with 6 waveforms and settings from 1/16 beat to 96 beats
• Random swing for step sequencer
• Wet/dry mix control
• MIDI CC and midi learn