About: http://webisa.webdatacommons.org/71693105

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	Even though they are listed as having a frequency response of 80 - 20 KHz they do not mention being measured at + or - 3 Db, which is the commonly accepted standard.I ended up replacing everything except the receiver and sub woofer.
http://www.w3.org/ns/prov#wasQuotedFrom	amazon.com