after my whole system was stolen I'm completely re building (see sig.) So far i have 2 infinity 7521a amps, pioneer DEH 6800 MP deck, 4 RE SR 10's. A buddy of mine at a local shop might hook me up with 2 Rockford 500.1's around 700 RMS each. He's also building me my custom ported box and a flush mount amp rack... I've never had 10's before, what do you guys think?

what did you have before? and how did thay get you?

4 pioneer 12's tsw306dvc. they broke out my window cut my alarm and took it i guess...

Make sure you have a lot more port area than you did in your old box...that's a tiny port for 4 subs.