About: http://webisa.webdatacommons.org/183093264

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	I do not think so as I think most people who are going to buy these wont even have heard about M50, SRH440 etc.
http://www.w3.org/ns/prov#wasQuotedFrom	head-fi.org