
What is Pro-L?
Pro-L is a professional mastering limiter plugin developed by Dutch audio software company, FabFilter. It’s designed for the final stage of audio production where you maximize loudness while maintaining audio quality and preventing clipping. This magic plugin’s secret formula makes it ideal for bringing your tracks up to competitive loudness levels, while preserving dynamic range and minimizing distortion. Throughout this in-depth FabFilter Pro-L review, we’ll concentrate on exemplary features like:
- True peak limiter with multiple limiting algorithms
- Mastering and loudness maximization for music production
- Available as VST, AU, AAX, and standalone formats for Windows and macOS
- Multiple limiting algorithms (including “Transparent,” “Aggressive,” “Safe,” and others)
- True peak limiting to prevent inter-sample clipping
- Integrated loudness metering (LUFS, LKFS)
- Lookahead capability for precise control
- Visual feedback showing gain reduction and output levels
- Zero-latency mode for tracking/live use



