About: http://webisa.webdatacommons.org/7638773

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	They tend to go for around $130-150 NOS condition ones, I expect to pay no more than $40-60 for one that has been used heavily or with issues such as static, channel imbalance and wear and tear damage such as worn pads.
http://www.w3.org/ns/prov#wasQuotedFrom	head-fi.org