About: http://webisa.webdatacommons.org/42924753

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	Use a speaker design program such as WinISD, bassbox pro, etc - below is a link to download the freeware version of WinISD. Plug in your woofers parameters and it will guide you to the right port...
http://www.w3.org/ns/prov#wasQuotedFrom	mp3car.com