The function of an amplifier, explain it clearly at once!

Many friends have doubts, why can't we just play music on the speaker and still have to put an amplifier over there to occupy space? A power amplifier is a device that amplifies power. For example, the audio output port of our phone can usually only drive headphones because the power of the phone port is very limited. If you want to drive headphones with higher power or impedance, you need to use a headphone amplifier. Similarly, speakers cannot provide such high power to the output port of the sound source equipment, and when two or more speakers sound together, our amplifier needs to amplify the power. The sound source is responsible for providing sound signals, the amplifier is responsible for amplifying the sound signals, and the speaker is responsible for playing the sound, thus forming a complete sound system.

Amplifier sound equipment