Blue Cat Audio Protector Limiter Plug-in Software

Limit your tracks and retain musicality with Blue Cat Protector, a limiter plug-in with simple controls, transparent response, and advanced sidechaining.

Blue Cat's Protector is a 0 dB stereo brick wall limiter with an adjustable dynamics response. It will typically find its place on the master bus of your DAW to protect your audio output from overshoot, limit the general volume and improve the perceived loudness, thanks to very transparent frequency response and its lookahead capabilities.

Despite its very simple set of controls, it offers a wide range of sounds and it is also suitable as a track limiter for more creative effects such as distortion, pumping, or heavy limiting.

Its large colorful peak and RMS meters and its custom dynamics histogram provide premium visual feedback and make it the perfect tool to monitor and control the dynamics on your master buss. You can also check in real-time the loudness boost obtained with the limiter.

Beyond its powerful dynamics processing features, and like most Blue Cat plug-ins, the Protector also offers an original sidechain capability thanks to its MIDI CC output. This unique technique not only lets you do sidechain limiting but also parameters modulation: control any parameter of any plugin to create powerful sidechain effects in real-time.


- dB brickwall peak limiter and waveshaper
- Optional lookahead
- Continuous control of the dynamics response from transparent limiting to colorful distortion
- Stereo link control
- DC Filter to get rid of DC offset
- Large zoomable peak and RMS audio levels and gain reduction meters for optimal monitoring
- Loudness boost read more monitoring
- Fully configurable dynamics response histogram
- Side chaining capability: a unique way to perform side chain compression and much more
- No latency (except with lookahead)
- Available in most plug-in formats for Mac and Windows
- Full MIDI control and automation support, MIDI Learn
- No CPU load on idle: processing shuts down when fed with silence (optimal CPU usage)
- Customizable user interface with transparency & zoom
- Automation and MIDI output: record output parameters as automation curves or send MIDI CC messages to other plug-ins for powerful side chain effects
- Smooth Bypass: noiseless plug-in activation / deactivation
- Undo/Redo
- Full featured integrated presets manager
- Copy/paste the state of the plug-in between instances
- Any sample rate supported
read less

-Operating System: mac Mac OS 10.7 or newer Intel processor
-Supported Plugins: VST-2, VST-3, AU, AAX
-Operating System: Windows Vista, Windows 7, 8, or 10 Pentium 4 or newer
-Supported Plugins: VST-2, VST-3, AAX
Base Item
Manufacturer Part Number (MPN): 1035-277

For support or warranty questions, please contact the manufacturer:

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