I'm looking for a new sub to go with my system, which is a Yamaha HTR-5960 7.1 receiver, and 2 Totem Acoustics Rainmaker bookshelf speakers. The room is some what open, and I'm using it for games, tv, movies, and music. my budget is in the $500 range, figure I should spend at least as much as one of the bookshelfs :). Any ideas?

Thanks

klipsch synergy sub-12

Without knowing more, here are some safe bets:

http://hsuresearch.com/products/vtf-2-mk3.html

http://svsound.com/products-sub-box-10nsd.cfm

http://svsound.com/products-sub-cyl-pcpow3.cfm

http://www.edesignaudio.com/edv2/product_info.php?cPath=2_41&products_id=102

http://www.edesignaudio.com/edv2/product_info.php?cPath=2_41&products_id=103