I'm looking to buy 2 subs, either an interfire(1st link) one or an alpine type R(2nd link). Both cost about the same. I'm looking for sound quality, but leaning towards a little more spl. any advice would be helpful.

http://www.amazon.com/gp/aw/d/B00CAXAAWS/ref=aw_ls__1?colid=2R8388SAJNB3D&coliid=I17ZR7C3NF JRG4

http://www.amazon.com/gp/aw/d/B008IW0UWA/ref=aw_ls_2_1?colid=2R8388SAJNB3D&coliid=I2G1B9ZVJ PFVER
I want them for.my 1969 chevy nova sedan. It has a huge trunk. The box I plan to put them in is a sealed enclosure for 2 subs. About 1 cubic feet per sub. The amp I will hook them.up to is a hifonics brutus 2400.1, both of the subs are rated at 1000RMS. They will be receiving about 1000W each if I wire them properly. Both are 4ohm dvc subs. hope this helps.