Blue Cat Protector

Blue Cat Protector｜The Ultimate 0dB Brickwall Limiter & Dynamic Protection Tool

Precise, Transparent, Powerful—Protect Your Mix from Any Clipping Distortion.

Blue Cat's Protector is a professional-grade 0dB stereo brickwall limiter with adjustable dynamic response. It's perfectly suited for your DAW's master bus, effectively protecting your audio output from clipping overload, while limiting overall volume and enhancing perceived loudness. With its extremely transparent frequency response and lookahead function, it has become an indispensable tool for countless producers and mixing engineers in the final dynamic control stage. Despite Protector's extremely simple control interface, it offers extensive sound shaping capabilities, not only for mastering but also as a track limiter to create creative effects such as distortion, pumping, or heavy compression.

Large and colorful Peak and RMS meters, combined with a unique dynamic histogram, provide top-tier visual feedback, making it a perfect tool for monitoring and controlling master bus dynamics. You can also instantly view the loudness boost data provided by the limiter. In addition to powerful dynamic processing capabilities, Protector also inherits Blue Cat Audio plugins' exclusive MIDI CC output sidechain function. This unique technology not only allows you to achieve traditional sidechain limiting but also enables parameter modulation, real-time control of any parameter of any other plugin, creating unparalleled dynamic effects.

Product Features

• Zero-Distortion Brickwall Limiting: A true 0dB stereo brickwall limiter that effectively prevents digital clipping, protects your monitoring system and hearing, and ensures the output signal never exceeds the set threshold.
• Extremely Transparent Sound: Thanks to its optimized algorithms and adjustable Lookahead function, Protector provides extremely clean and transparent dynamic limiting without coloring the sound, perfectly preserving the details and clarity of the original audio.
• Adjustable Dynamic Response: With simple controls, you can precisely adjust the limiter's Attack and Release times, easily achieving anything from smooth, natural gain control to aggressive pumping effects.
• Intuitive Visual Meters: Equipped with large, high-contrast Peak and RMS meters, as well as an innovative dynamic histogram, allowing you to instantly monitor the complete dynamic history of input, output, and gain reduction.
• Exclusive MIDI CC Sidechain: The innovative MIDI CC output function converts Protector's dynamic response into MIDI control signals, used to trigger or modulate parameters of other instrument or effect plugins, achieving complex sidechain effects.
• Low Latency & CPU Efficiency: Supports minimum latency operation, and processing automatically shuts down when no signal is input (No CPU load on idle), maximizing your system resource utilization, suitable for large projects.
• Blue Cat Audio Standard: Includes a freely scalable and transparent user interface, full MIDI control and automation support, MIDI Learn function, smooth and noise-free Bypass switching, a complete preset management system, and unlimited Undo/Redo.

Core Features Explained