"You can't find a better value for the price"4.5 starson by soundssolar
Pros: Surprisingly good bass reproduction.
Cons: There is some "boomy-ness" at the lower frequencies, but you would have to spend ten times the cost of this sub to get better performance.
Summary: I installed this sub to an existing Sony STR-DE915 amp and a new Sony KDL 55V5100 LCD and couldn't be more pleased. It outperforms my $800 sub by another manufacturer that I have in another home theater set up using a much more powerful Denon amp. I was surprised how well this budget-priced sub can handle very loud movie passages through the Sony Blu Ray without clips, pops or distortion. For example, the airliner crash scene in the movie 'Knowing' has very heavy bass requirements. Thanks, Polk Audio, for a great product.