What is a subwoofer?

"Subwoofer" refers to a low frequency speaker that is used to fill in the deep, rich bass lacked by regular speakers. They are specialized and do not produce high or mid-range frequencies.

Subwoofers are built to produce the deepest notes of the musical spectrum. Subwoofers are commonly used in home theater systems or installed in cars. In all applications, the subwoofer is considered a standalone device that is simply used to fortify the high-pitched sound produced by the other speakers. The quality of sound produced by a subwoofer largely depends on the components used to make it and its overall construction. The two types of subwoofers are active and passive.