hiPass is a filter plug-in designed to deliver high spectral selectivity while preserving a perfectly flat pass-band response. This ensures that frequencies within the desired range remain untouched, providing pristine audio quality without coloration or distortion.

The filter slope can be adjusted from gentle 6 dB/oct to an extremely steep 192 dB/oct, allowing detailed control over the frequency cutoff. Internal processing uses double precision with 52-bit accuracy, and when paired with compatible audio engines, it supports a transparent 64-bit signal path to maintain audio fidelity throughout the filtering process.

hiPass also provides split channel stereo control for precise manipulation of stereo signals and offers a configurable overshoot display to help visualize filter behavior. It includes a selection of presets to serve as convenient starting points, making it straightforward to integrate into a wide range of audio production workflows.