My problems with my system is this 1) I've got Pioneer 4 way 6x9s that I keep burning the tweets out on. 2) My 72 has limited room to put in seperates, even though that's what I'd like to do. 3) My doors are already cut-out for 6x9s 4) I like to play my music loud and a little on the bright side. Any help would be appreciated. My system consists of Kenwood 509s reciever, Kenwood 6 disc changer, Alpine f303 4 channel amp,two Pioneer 4way 6x9 speakers and a 10" enclosed Pioneer woofer.