You gunna be happy with that sub. I love these things. When I had one I was out beating everybody round my way, trucks, SUVs, 3 12s. But my first box was 2.7 cubes lol. But now I got 2 and it's um, loud. Haha....Iammp3pimp I found out my HU was causing the problems so I bought a CD5000 (will be here tommorow) and I'm still waiting on Rainbows to come in stock, I'll hit u up to hear it all when it's all done.