Big, smart accurate speakers you build yourself. Put JBL 2226 15" woofers in a 4.5 cu ft box and the cone/ribbon/compression tweeter of choice. Second order Butterworth on the tweeter and a 1.5 mH coil on the woofer. Or buy a kit. Or assembled:
http://www.pispeakers.com/catalog/product_info.php/products_id/105
http://www.pispeakers.com/catalog/product_info.php/products_id/105