The automatic gain control circuit AGC provides a signal with less harmonics and additional amplification, between certain limits.
As a result, it eliminates those intensity differences, annoying, and of speech music, which sometimes appear on radio and television.

The LM3886 is a high performance 150W Audio Power Amplifier with Mute. The performance of the audio power LM3886, say NS, utilising its Self Peak Instantaneous Temperature (°Ke) (SPIKe) protection circuitry, puts in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA).
