I am just starting to get into DIY. Well I havnt done anything yet but you get the point. I was wondering. I have a pair of sony towers. 6 1/2", 4", and tweet in a very resonant, ported tower enclosure. They sound like crap. But they are just surrounds for now. Now is there anything I can do to make them better? Brace the enclosure? Sound deadening material? What about upgrade the drivers? If I can do something to help I would be willing to look into it. What about just using a better crossover? Well Ill shut up. Thanks for the help.