My first major build and I want to do it correctly, please point out potential issues. Just bought an SAZ1500d V.2 amp cause I found a smoking deal and couldn't pass it up. It's on a truck barreling towards my house right now Looking for a sub to pair it with and the Q caught my eye. Looks as if I add the cooling package to the sub I can pump another 200-500 watts into her which will align perfectly with the Sundown's output. Going Dual 2 Ohm coils and wire it all up for total impedance of 1 ohm and I should be styling. Only thing I'm still debating is whether I should go with an 18" or 15" woofer. The 18 attracts me for the sheer fact that it's an 18. It'll be bigger than my mofuggin rims man! I also want the system to mess with my lungs a little and hopefully do a tiny hair trick when I crank her up. But I listen to equal parts country, rock, and rap and want quick response. I just want to make sure the 18 won't be "sloppy" in a 10 cu ft ported box when I put on some rock.