FabFilter Pro-L 2 is a professional tool designed as a true peak limiter. It is great for transparent mastering as well as for single instrument limiting. This app offers various limiting algorithms that cater to different needs. With its intuitive interface, users can easily navigate the features without any hassle.

One of the standout features of Pro-L 2 is its ability to filter microphone input and play it back in real-time. To use Pro-L 2 as a plug-in, you need an AUv3-compatible host app, such as Auria, AUM, or Cubasis. Once set up, Pro-L 2 will show up in the list of Audio Unit extensions for effect plug-ins, making it easy to integrate into your workflow.

The app delivers a great transparent sound that comes with maximum loudness. It has eight sophisticated limiting algorithms, each carefully tuned with its own character and purpose. Pro-L 2 utilizes oversampling technology, offering up to 32x linear-phase oversampling to reduce aliasing and inter-sample peaks. This helps maintain the integrity of your audio while keeping CPU usage low.

In terms of loudness metering, Pro-L 2 offers highly accurate output metering, including true peak metering. The app supports various loudness standards like EBU R128, ITU-R BS.1770-4, and ATSC A/85, making it fit for professional use. You’ll find various meter scale settings available, including K-System support, to match your specific requirements.

Pro-L 2 also includes surround support for Dolby Atmos formats, such as 7.0.2 and 7.1.2, featuring flexible surround channel linking. The unique and highly informative real-time level display shows input, output, gain change, and loudness levels over time. This feature provides key gain reduction readings with four different display modes.

To enhance your audio further, Pro-L 2 includes an optional DC offset filter. It supports external side chain triggering, which is particularly useful for stem mastering. The unity gain option lets you easily hear the effects of the limiting at a unity gain level. Additionally, the Audition Limiting feature allows you to listen to the difference between the input and output signal.

Users can adjust Look-ahead, Attack, and Release settings to fine-tune the sound of the limiting algorithms. Pro-L 2 also offers separate and adjustable channel linking for both the transient stage and release stage. The app features professional dithering options, including three different noise shaping algorithms to help achieve the best sound possible.

Setting up Pro-L 2 is straightforward, as it comes with included factory presets that cater to common limiting situations. This makes it easy to get started, whether you are a beginner or an experienced audio engineer. FabFilter Pro-L 2 is a comprehensive tool that ensures you have everything you need for high-quality audio limiting.