OK, so first off I realize this a very redundant post, as I myself, even new to this forum have read several of these, and I apologize. So I currently have a 10" Polk Signature Reference series sub in a small (around 1-1.1 cubic feet, pre-fab) sealed enclosure with about 500 watts running to it from a Fosgate amp. So I've read numerous reviews on the Fi subs on here, in particular the SSD and the Q series. I am leaning towards an SSD series in a 12". Coming from the setup I have I want to know what kind of gains I will receive in terms of output stepping up to a SSD 12", or any 12" for that matter. I am still wanting to go with a small sealed enclosure, and from what I have read the SSD seems to excel in this type of enclosure. I am looking for more for of an SQ oriented setup, not an audiophile grade SQ setup (as I've seen some get flamed b/c they said they wanted an SQ set-up), its just that I am wanting to get a little more kick added to my kick drum if you know what I mean. I listen to pretty much 99 percent rock... Metallica, Skynyrd, Pink Floyd, Finger Eleven, Tool, etc... And I am also looking for a suggestion on a good amp to pair with this sub, in the $200-$300 price range, maybe more if that won't get me a decent amp. Thank you in advance for any replies and I must say there seem to be a lot of great people on this forum and a lot of people with a ton of knowledge about car audio, and I hope to gain some knowledge by listening to you guys.