Assertion: speaker's woofer | /r/HasProperty | low frequencies
Facets:
Source sentences:
text: The drivers are named subwoofers (for very low frequencies); woofers (low frequencies); mid-range speakers (middle frequencies); tweeters (high frequencies); and sometimes supertweeters, optimized for the highest audible frequencies.
text: This is why tweeters (high-frequency drivers) are typically small domes and woofers (low frequency drivers) are usually large cones.