About: http://webisa.webdatacommons.org/42987456

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A subwoofer is a speaker designed to accurately reproduce the low-pitched frequencies of sound, generally known as ???bass.??? In a vehicle, the frequency of this sound measures less than 125 hertz.
http://www.w3.org/ns/prov#wasQuotedFrom	subarudrive.com