in my opinion, the best subwoofer for the money is the Sunfire Subwoofer. it comes in several flavors and sizes for just about any applications. The best is the signature that is 13 x 13 inch cube. I install home theater systems for a living and I have not met a subwoofer for the price that will shake the room as well. 2 are better than one, but one will do the job nicely. Nuff said
JC
JC