What is a Hardware Limiter?

A hardware limiter is a physical audio processing device used in recording, mixing, and mastering to prevent an audio signal from exceeding a specified maximum level. It automatically reduces the volume of signals that rise above a set threshold, helping avoid clipping and distortion.

A hardware limiter works similarly to a compressor but uses a very high compression ratio, often described as infinite-to-one. When the signal reaches the threshold, the limiter prevents it from getting any louder, effectively setting a ceiling for the audio level.

Hardware limiters are commonly used in professional studios, broadcast systems, and live sound environments to control peaks and maintain consistent signal levels. Many engineers value hardware limiters for their reliable performance and the subtle tonal characteristics that some analog circuits can add to the sound.