good thing you edited your post, i was just about to yell at you, he has 4 cvrs'For 1600w rms, I'd go for a saz 2000. Its good to have the extra power, especially if you need better efficiency.You might be better off getting two SAE1200's or AQ1200's
That way you can pair the subs together for a 1 ohm load. Because getting 2000w @ 2ohms is a bit expensive...
id try to get your hands on a kicker zx1500.1Thanks guy's I have the dual 4 ohm subwoofers.