Thanks for all the help. I really don't know if I need a bigger amp now though, with some extra work on the box, I actually can't take the bass on some songs. If I keep the driver window up and put the passenger down it gets incredibly loud on the drivers side. Something to try if you normally play your music with both windows down or up (Like I did) Btw, I'm running sub/port up. 110" of port right under drivers headrest sub in the middle. I really want to go get metered now.