About: http://webisa.webdatacommons.org/60447904

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	There are many larger sets of speaker systems when you get into surround sound, such as 4.1, 5.1 and even 7.1, which add rear, center and extra front channels into the mix.
http://www.w3.org/ns/prov#wasQuotedFrom	ocia.net