The term "woofer" is commonly used to refer to the speaker driver in a speaker system that is responsible for handling low-frequency or bass sounds. However, there are several other synonyms that can be used to describe this type of speaker. Some of these include subwoofer, bass driver, low-frequency driver, and bass speaker. These terms are often used interchangeably, but they each convey the same basic idea of a speaker that is designed to accurately reproduce the lower frequencies of music and other audio content. Regardless of which term is used, a quality woofer is an essential component of any high-quality audio setup.