As a poor college student, great deals are always attractive. No deal is better than a free subwoofer. Originally I was quite fond of the Klipsch Synergy Sub-10 just so it would match with the other speakers, but then my cousin offered me a sub for free. No way I could pass that up. Turns out he had an Energy ES-12 sub. It’s a non-ported sub so there’s no sound hole in the enclosure. I’ve had trouble finding any reviews or pricing information on this sub because I think it’s pretty old. Either way I really like this sub and I’m grateful that I got it for free. At 12 inches I know that it will be able to fill any size living room that I will be moving into. When I’ve hooked it up, the sub hits don’t seem to be as tight and accurate as I would like. The hits are a little bit loose. Perhaps I need to fiddle with the settings a bit.