BUTE Limiter 2 (Surround)

BUTE Limiter 2 (Surround) is a true peak limiter designed for mastering and mixing applications that prioritizes transparency alongside precise loudness control. Built on Signum Audio's proprietary overshoot-proof brick wall algorithm, the plugin employs linear phase upsampling to detect and prevent peaks from exceeding your target threshold without introducing the audible artifacts commonly associated with limiting. This technical approach makes it particularly valuable when working with surround mixes, where maintaining phase coherence across multiple channels is critical.

The plugin accommodates both maximizer and traditional limiter workflows through its Pre Gain and Post Gain controls. Pre Gain allows engineers to drive the limiter like a compressor, while Post Gain enables level compensation after limiting without affecting the limiter's response. The adaptive auto-release feature with five curve options adapts the release time based on signal content, reducing pump and maintaining musicality across diverse material.

BUTE Limiter 2's interface scales from a comprehensive resizable history view for detailed analysis to a compact horizontal control view for streamlined operation. The history display tracks true peak, gain reduction, and output levels with automatic DAW sync, allowing real-time visualization of how parameter adjustments affect your mix. Any true peak overshoots introduced via Post Gain are flagged as warnings.

The plugin is best suited for mastering engineers handling surround formats and mixing professionals who require transparent peak control without coloration. While true peak limiting has become standard in loudness-compliant mastering, BUTE Limiter 2's implementation stands out for maintaining signal integrity while supporting flexible working methods.