Okay, so basically I'm strung between buying a single 18" sub, and 4 12" subs. The 12's would be louder, and theyd cost about the same, and I like the way 12's sound, which makes me lean that way, but then again having a single sub being real loud does have a certain wow factor...Both setups would be in real complex boxes, with the 4 12's being in an all fiberglass box...Ported of course...Both setups ran off a t10001bd...
I'd probably get a BL if I got an 18, and probably some diamond d3 subs if i went with 4 12's...they look like this:
Basically I can't choose, so please vote and let me know why you picked what you picked.