The BBE 461 Sonic Maximiser is a professional audio signal processor designed to enhance and improve sound quality across various audio applications. Introduced by BBE Sound, Inc., this unit is renowned for its unique signal processing technology that aims to correct phase and timing issues in audio signals. Unlike traditional equalizers, the Sonic Maximiser focuses on improving the clarity, definition, and perceived depth of sound by addressing what BBE calls "phase distortion" in the audio spectrum. Musicians, sound engineers, and audiophiles have appreciated the 461 model for its ability to bring out subtle details in music, make instruments sound more distinct, and create a more open and transparent soundstage, making it a popular tool in recording studios, live sound setups, and home audio systems.