Just seeing what some of you guys recommend here, I'm looking to spend around $500. Best Buy has a Klipsch SUB-12 that really impressed me and is on sale right now for $423. Just looking for some opinions. I have a Cerwin Vega 300 watt 12" right now and it just doesn't quite cut it these days, looking for a little better quality. My room this will be in is 16x16 but is a fairly open room, connecting to foyer, dining, etc.