Blue Cat's MB-7 Mixer is a powerful audio plug-in that divides the input signal into multiple frequency bands, allowing independent mixing and processing of each band. It offers controls similar to a mixing console, such as gain adjustment, panning, and stereo width management for every band. Users can bypass, mute, or solo individual bands to focus on specific frequency ranges, and a master mono switch ensures easy verification of mono compatibility.

Beyond mixing, MB-7 Mixer acts as a multiband VST host, enabling the insertion of up to four third-party plug-ins per band, both before and after the fader. This provides extensive processing flexibility with full latency compensation and support for external side chains. The plug-in features advanced routing options to connect sub plug-ins in diverse configurations, supporting creative effects such as multi-mono processing and complex side chain setups.

Unique linking and grouping capabilities allow bands to be controlled across multiple instances of the plug-in, making it easier to adjust the balance and stereo positioning of several tracks simultaneously. The interface delivers comprehensive visual feedback, including real-time spectrum analysis, frequency response curves, and level meters for each band. With up to seven bands and customizable crossover filters, MB-7 Mixer provides detailed control over multiband audio mixing and processing without introducing additional latency.