i'm looking to possibly get a 12 inch X.XX sub for my grand cherokee. i was just wondering what would be a good box to get for it. i am primarily looking for SQ, but would like it to be able to get somewhat loud if i so desired. the car is my daily driver and i wont be entering any competitions with it or anything...so is a sealed box best?? i was looking at subzero boxes, are they good or should i look somewhere else? also, i know this is in the subwoofer section, but is the phoenix gold 1200 watt amp a good amp to power this sub? or is there something else that would be better for around the same price? thanks in advance everyone!