Ears and Speakers Protector

Sometimes the output volume of amplifier is too high and hurts our ears. As well as hurting your ears, this incident could damage your loudspeaker. The circuit below can be used to protect both our ears and our loudspeakers from destructive output signal of amplifier, works by deactivating the amplifier when high level signal is detected. This circuit will disable the amplifier when the output volume of amplifier reaches the set level by detecting the paeak audio. This circuit is designed for the MC34119 amplifier, but it also work with similar applications or IC devices. Here is the schematic diagram of the circuit: