Assertion: speaker | /r/CapableOf | use woofer
Facets:
value: for the lowest frequencies
type: PURPOSE
value: to turn voltage
type: PURPOSE
Source sentences:
text: Speakers use drivers, including woofers, tweeters and midrange cones, to turn voltage into sound.
text: At the very least, such a loudspeaker may be 2-way employing a woofer (or mid-range/mid-woofer) and a tweeter.
text: Additionally, some loudspeakers use the woofer to handle middle frequencies, eliminating the mid-range driver.
text: Some loudspeaker systems use a woofer for the lowest frequencies, sometimes well enough that a subwoofer is not needed.