I currently have an Alpine type r 15 on a kicker zx750.1. I have it in a 3.75ft net box tuned to 35 hz and it gets pretty loud and sounds decent. My choices of a new sub were a SSA Icon 15, FI SSD 15, and an AA Choas 15. The new sub would go into the same old box but now run off a T1000-1bdcp. I want to know which sub would sound better off my amp. I want it to be louder than my type R and sound good as well.