About: http://webisa.webdatacommons.org/209288521

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 are rolled off on the bass end, say below 50 hz or so, and they are not particularly fast, but you will only notice that in comparison with a far more expensive pair of 'phones.
http://www.w3.org/ns/prov#wasQuotedFrom	head-fi.org