The Pro-MB Software Plug-In from FabFilter is a professional multiband compressor/expander with six processing bands that can be freely placed anywhere in the audio spectrum. It can be used for audio mixing and mastering applications such as studio recording, post production, and more. Instead of conventionally splitting the entire spectrum with crossovers, Pro-MB enables you to create a new band at the frequency range in which you wish to work. The interactive multiband display clearly shows what the rest of the spectrum is which stays untouched, and, if desired, you can snap bands together to recreate a traditional crossover system. Each band is fully customizable with a threshold, range, attack, release, output gain, ratio, variable knee, lookahead, variable stereo linking, mid-or side-only processing, and much more.

The Pro-MB has a Dynamic Phase processing mode that features much of the same frequency response as traditional multiband processors but doesn’t introduce latency or pre-ringing. Additionally, it only introduces minor phase changes when the gain actually changes. Also included are a Linear Phase mode and a Minimum Phase mode. The combination of professional processing with interactive multiband display can help you to optimize your workflow.

The Pro-MB software has comprehensive MIDI specs, including MIDI learn, Smart Parameter Interpolation for smoother parameter transitions, and supports common Pro Tools hardware control surfaces. The software also offers an extensive interactive help feature, and AltiVec and SSE optimization. The plug-in is available in VST, VST 3, Audio Units, AAX Native and AudioSuite formats (both 64- and 32-bit), and RTAS (in 32-bit).