FabFilter Pro-MB is a multiband compression and expansion plugin that redefines how multiband dynamics are approached. It allows users to place bands freely anywhere within the frequency spectrum instead of relying on fixed crossovers, enabling precise focus on specific frequency ranges. The interactive display highlights unaffected areas of the spectrum, while bands can be snapped together to mimic traditional crossover setups, offering both flexibility and familiarity. This approach streamlines workflow and enhances creative control over dynamic processing.

A standout feature of Pro-MB is its Dynamic Phase processing mode, which delivers the same frequency response as conventional multiband processing but without latency, pre-ringing, or static phase shifts. This ensures transparent sound quality even during dynamic gain changes. Additionally, the plugin includes Linear Phase and Minimum Phase modes, catering to a variety of sonic preferences and use cases. Each of the up to six bands can be tailored with extensive controls, including threshold, ratio, attack, release, knee, and lookahead, plus options for mid/side processing and external sidechain triggering, making it suitable for a wide range of audio material.

The user interface of FabFilter Pro-MB is designed for clarity and ease of use, presenting vital controls and real-time visual feedback at a glance. The plugin’s intelligent algorithms adapt attack and release curves based on program material, ensuring smooth, musical results. Additional features such as adjustable crossover slopes, global dry/wet mix, high-quality audio processing with oversampling, and GPU-accelerated graphics contribute to both sound precision and workflow efficiency. FabFilter Pro-MB is a powerful tool for mixing and mastering engineers seeking detailed and dynamic control over their audio.