Woofer vs. Subwoofer

Woofernoun

An electronic speaker that produces low-frequency sound.

Woofernoun

(Internet slang) A dog.

Woofernoun

a loudspeaker that reproduces lower audio frequency sounds

Woofer

A woofer or bass speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 50 Hz up to 1000 Hz. The name is from the onomatopoeic English word for a dog's bark, (in contrast to the name used for loudspeakers designed to reproduce high-frequency sounds, tweeter).

Subwoofernoun

An electronic speaker designed to produce low-frequency sound, especially bass.

Subwoofer

A subwoofer (or sub) is a loudspeaker designed to reproduce low-pitched audio frequencies known as bass and sub-bass, lower in frequency than those which can be (optimally) generated by a woofer. The typical frequency range for a subwoofer is about 20–200 Hz for consumer products, below 100 Hz for professional live sound, and below 80 Hz in THX-certified systems.