[x series?]

I heard 6 x 15's in a 4th order with 15k on them and words can't even describe what it sounded like. I'm leaning toward the 15's. Those 18's should be sick when you get it done!

[x series?]

I have a mmats 3001.right now in my 2001 Eclipse on 2 Rockford p3 12's. Obviously, this is way too much amp. I am about to replace my subs and was looking at the sundown x series. I'm going for LOUD as hell, but I still want sound quality so a strictly spl sub is out of the question. I have the option of taking the backseat out and doing 2 12's in a 4th order, or 2 15's in a vented box. What do you think about this idea, and with one will give me the best spl. is the x the correct series sub?