Complex sentence: Subwoofers are intended to augment the low frequency range of loudspeakers covering higher hi "subwoofer" technically only refers to the speaker driver, in common parlance, the term often refers to a subwoofer driver mounted in a speaker enclosure (cabinet).
Split into simpler sentences: Subwoofers are intended to augment the low frequency range of loudspeakers covering higher frequency bands. While the term "subwoofer" technically only refers to the speaker driver, in common parlance, the term often refers to a subwoofer driver mounted in a speaker enclosure (cabinet).