lowbass

I have an 04 Corolla with an rp2000 on 1 zvx12v2 sub. I bought a pretty big dual 12 box tuned to 32hz. The port wraps around the back and is as long as it can before it chokes itself, i had 2 sdrs in it at 1400w but on the lows I could tell they weren't doing what they could have. I bought a zvx...