Protector — Free Download
Protector is a 0 dB stereo brickwall limiter with adjustable dynamics response for transparent mastering and creative distortion, featuring side-chain via MIDI CC and extensive metering.
Purpose and Core Function
Protector is designed primarily as a master bus limiter to prevent overshoots, control overall volume, and increase perceived loudness with a transparent frequency response. Its 0 dB brickwall peak limiting and waveshaper ensure no audio exceeds the ceiling, while the continuous dynamics response control lets you shape behavior from transparent limiting to colorful distortion.
Beyond standard limiting, it excels as a track limiter for creative effects like pumping and heavy distortion. The stereo link control and DC filter add practical utility. Its design prioritizes precise gain control with minimal coloration, making it suitable for finalizing mixes or adding character to individual tracks.
Key Monitoring and Metering
Large, zoomable peak and RMS level meters, alongside gain reduction meters, provide comprehensive visual feedback on dynamics. A fully configurable dynamics histogram displays the distribution of gain reduction over time, helping you analyze loudness patterns. The loudness boost monitoring feature shows in real time how much perceived loudness increase the limiter applies.
These visual tools are color-coded and highly legible, making Protector ideal for precise monitoring on the master bus. The zoomable interface allows detailed inspection of meter behavior and gain reduction, enabling fine-tuned adjustments. This feedback loop supports transparent mastering or deliberate dynamics shaping.
Side-Chain and Modulation Capabilities
A standout feature is its unique side-chain capability via MIDI CC output. This allows Protector to send MIDI Control Change messages to control any parameter of other plugins, creating side-chain compression effects or complex parameter modulation in real time. This extends beyond typical audio keying, enabling dynamic modulation of filters, volume, and effects based on the input signal.
This side-chain capability is fully configurable, with MIDI Learn for easy assignment. It also supports full MIDI control and automation with zipper-free parameter updates and smooth bypass. By outputting automation curves or MIDI CC, you can record and reuse these modulation routes, integrating deeply with your DAW’s automation system.
Workflow and Practical Applications
Protector is efficient in practical workflows: its no-latency design suits live and real-time applications. The customizable interface with transparency management aids visual integration. The integrated presets manager and copy/paste state between instances streamline session preparation and consistency across multiple projects.
With no CPU load on idle, it optimizes DAW efficiency during silent passages. The smooth bypass ensures clean A/B comparisons and automation without clicks. Suitable for mastering engineers seeking transparent loudness, producers wanting creative distortion, and anyone needing advanced side-chain modulation, Protector offers a compact yet powerful toolset.
Key features
- 0 dB brickwall peak limiter and waveshaper
- Continuous control from transparent limiting to distortion
- Stereo link and DC filter
- Zoomable peak, RMS, and gain reduction meters
- Configurable dynamics histogram and loudness boost monitoring
- Side-chain via MIDI CC output and MIDI Learn
- No latency and no CPU load on idle
Best for
Master bus limiting for transparent loudness maximization, creative distortion on tracks, and side-chain driven parameter modulation in DAWs that support VST, AU, or AAX formats.
