ZapFilter^2 offers a powerful dual-filter design combined with a distortion and saturation unit, making it an essential tool for shaping sound in any music production. It features two separate stereo filter engines, each equipped with 15 selectable filter algorithms. Users can route these filters in series or parallel, allowing for detailed tonal sculpting and complex sound textures. The plugin integrates host-synced bipolar LFO modulation for cutoff control, providing multiple waveforms such as triangle, square, sine, and saw to enhance rhythmic movement.

Each filter unit includes an envelope follower with adjustable parameters for attack, release, and modulation amount, along with options for tight or relaxed sensing and sidechain input. The saturation/distortion section adds warmth and edge by allowing precise control over drive and shaping. ZapFilter^2 supports extensive automation, including program switching via MIDI notes and modulation of cutoff frequencies through MIDI CCs. Its internal preset manager simplifies workflow with features like copying, pasting, and saving presets in standard formats, plus a custom default bank load at startup.

Additional highlights include a unique FreeEnv-Controller for drawing frequency-to-volume curves, four visual VU meters monitoring input and output levels, and a final output limiter to maintain audio integrity. The plugin comes with five preset banks containing 80 ready-to-use presets, providing a broad palette of sounds right out of the box. ZapFilter^2 is designed for seamless integration into any digital audio workstation, offering comprehensive control and creative potential for producers, sound designers, and mixing engineers.