FabFilter 's Pro-L 2 Limiter software plug-in is a major update to the Pro-L Limiter plug-in. It adds four additional limiting algorithms: Modern for general all-purpose limiting, Aggressive for EDM and rock, Drum-specific Bus and individual track limiting, and Safe, which avoids distortion at all costs.

The plug-in works on Mac or Windows computers and can be used for mixing and mastering audio applications such as studio recording, post-production, and more.

Combined with true peak measurement and extensive volume measurement, it is compliant with EBU R128, ITU-R BS.1770-4 and ATSC A/85 standards. Support for surround audio with flexible channel binding makes FabFilter Pro-L 2 much more versatile in multi-channel scenarios, with up to 32x linear phase oversampling. Other features like a DC shift filter, external sidechain drive for stem mastering, and a unity gain option ensure the Pro-L 2 is a solution to any mastering challenge.

Additionally, real-time level display is offered with multiple display modes, including an infinite mode that shows all audio from an entire session. Significant gain reduction is highlighted with peak labels to provide additional information about the limiting process. The Pro-L2 interface has been carefully redesigned with an optimized workflow. Finally, the plug-in is available in VST, VST3, Audio Units, AAX Native and AudioSuite formats, in 64 and 32 bits, as well as RTAS in 32 bits.

• Features transparent sound combined with maximum volume

• Eight carefully tuned limiting algorithms with true peak limiting

• Up to 32x linear phase oversampling to minimize aliasing and spikes between samples

• Low CPU Usage

• Accurate output measurement and gain reduction, including true peak measurement

• Various meter scale configurations including K-System support

• Surround support including Dolby Atmos 7.0.2 and 7.1.2 formats with flexible surround channel linking

• Highly informative real-time level display

• Optional DC shift filter

• External sidechain drive for stem mastering

• Unity gain option to easily hear the effect of current limiting on the unity gain level

• Hearing limitation to hear the difference between the input and output signal

• Adjustable anticipation, attack and release settings to adjust the sound of the algorithms

• Separate, freely adjustable channel linkage for transient and release stages

• Professional dithering with three different noise shaping algorithms

• Automatically adapts to stereo, mono, and surround channel layouts

• Full screen mode for precise adjustments and insightful measurement

• Multiple interface sizes: Medium, large, and extra-large, as well as a separate compact mode

• Retina support on Mac OS X and high DPI support on Windows

• GPU-powered graphics acceleration

• Supports common Pro Tools hardware control surfaces

• Available in VST, VST 3, Audio Units, AAX Native and AudioSuite formats, in 64 and 32 bits, as well as RTAS in 32 bits