FabFilter Micro offers a streamlined filter plug-in experience, delivering the signature FabFilter sound at an accessible level. Built around the classic filter design originally crafted for the FabFilter One synthesizer, it features both low-pass and high-pass filter shapes. Its smooth and creamy tone can be pushed into intense self-oscillation with the Peak control, providing a dynamic range from subtle filtering to aggressive saturation without losing warmth or introducing digital artifacts.

This plug-in includes an envelope follower that enables creative modulation of the filter cutoff based on the input signal's amplitude, expanding its expressive potential. Separate input and output gain controls allow precise management of the filter's saturation and clipping characteristics by adjusting the signal levels before and after filtering. This design ensures that the filter maintains an analog-style balance and musicality even at high resonance settings.

FabFilter Micro integrates user-friendly features such as finely tuned controls, interactive MIDI Learn, undo/redo functionality, and an A/B switch for easy comparison of settings. It supports smooth parameter transitions with Smart Parameter Interpolation and offers sample-accurate automation. Optimized for performance with AltiVec and SSE, the plug-in also includes a comprehensive help file with interactive hints to streamline the creative workflow.