The difference between Audio, speaker, and amplifier
1. Power amplifier: In layman's terms, it is a power amplifier, which is an electro-acoustic device that amplifies power. It amplifies the audio signal and sends it to the speaker. Only by matching the appropriate amplifier and speaker can the timbre and power of the sound be better restored. This is the role of the amplifier.
2. Speaker: It is composed of speakers, frequency dividers, drivers, sound-absorbing cotton, cabinets, etc. It is a sound reinforcement device. It converts electrical energy into sound energy through speakers. The human ear can only subjectively feel the sound after the speaker is converted. sound from the system. The speaker is just an indispensable component of the audio system. The function of the speaker is to convert the electrical signal amplified by the power amplifier into sound and transmit it to the human ear. Some speakers are put into a power amplifier unit, and they become active speakers.
3. Audio: Generally speaking, the speaker, power amplifier, and sound source system are a system, and the speaker is basically just a structure of a wooden box and a speaker. Sound is a general concept, that is, the speaker sound refers to the entire system equipment, and the speaker refers to the sound box. It is a system that consists of an audio source + amplifier + speaker. Many friends will add mixers, preamplifiers, and other peripheral equipment to this system because of the pursuit of sound effects and debugging conveniences, such as equalizers, compressors, feedback suppressors, or Audio digital processors. Therefore, the audio is more professional and more systematic. It can be divided into home audio (civil audio), broadcast audio, and professional audio (dedicated audio system for stage performances, conferences, etc.).