Subwoofer is a common name or abbreviation for everyone. Strictly speaking, it should be: subwoofer. As far as human audible audio analysis is concerned, it consists of super bass, bass, low-mid range, mid-range, mid-high range, high-pitched, super high-pitched, etc.
To put it simply, low frequency is the basic frame of sound, mid frequency is the flesh and blood of sound, and high frequency is the detailed reflection of sound.

With the development of science and technology and the development of economic foundation, subwoofer and broadband have entered the audio world. Super bass is to strengthen the structure, and broadband is to make the sound difference more clear.
Overweight bass, overweight bass is audible to the human ear is extremely limited, but can be felt by other human senses, this is the feeling of shock! As far as the needs of audio program sources reflected by audio and home theater are concerned, the subwoofer only exists in a specific program source and needs to be restored. With it, the restoration of the program source can be made more solid, without it, it will give people a lack of power. , the feeling of energy. For example, in the cinema or in reality, we can feel the shock of the power and energy when the plane takes off, but if the home theater is not equipped with subwoofers or the configuration is unreasonable, we cannot feel this shock.