how does this sound i found a box online at ebay for 2 kickers L7's
http://cgi.ebay.com/NEW-KICKER-DUAL-15-SUBWOOFER-L5-L7-PORTED-CAR-SUB-BOX-U_W0QQitemZ5881033380QQcategoryZ58035QQtcZphotoQQrdZ1QQcmdZViewItem
also how is this one for w7's
http://cgi.ebay.com/DUAL-13-PORTED-MDF-JL-AUDIO-13W7-SUB-ENCLOSURE-W7-BOX_W0QQitemZ5880770524QQcategoryZ14945QQtcZphotoQQrdZ1QQcmdZViewItem
http://cgi.ebay.com/NEW-KICKER-DUAL-15-SUBWOOFER-L5-L7-PORTED-CAR-SUB-BOX-U_W0QQitemZ5881033380QQcategoryZ58035QQtcZphotoQQrdZ1QQcmdZViewItem
also how is this one for w7's
http://cgi.ebay.com/DUAL-13-PORTED-MDF-JL-AUDIO-13W7-SUB-ENCLOSURE-W7-BOX_W0QQitemZ5880770524QQcategoryZ14945QQtcZphotoQQrdZ1QQcmdZViewItem
