About: http://webisa.webdatacommons.org/191495274

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	If you still have warranty on them you should try sending them back -- this sounds particularly painful of a problem and something not common at all so its probably a problem with your pair.
http://www.w3.org/ns/prov#wasQuotedFrom	head-fi.org