I'm looking at getting a new 18" sub right now I'm debating a hdc318 and a fi q 18. I have a zx1500 amp so looking to throw 1500 watts at it. I want a sub that will play low as well as get loud I use to run a pair if 12" re se's that did a 144 legal on tl so I want new set up to beat that any ideas I. What to get? I also have concidered a bl but they aren't in the website yet and I need to order sub by monday.