A have a couple of questions that I hope you guys don't mind me asking. I have A MTX sw2 sub that's not bad but doesn't provide any more oomf than my 10 inch sub. I have thought about replacing the driver for a better one. Now I know many would suggest that I should just buy a better subwoofer which I plan to do but I will still own this one and will still want to see if I can improve it somehow. I have used the selection wizard at the part xpress website and it came up with only a couple of drivers. I'm sure there is a way to find more options to find a driver for this enclosure. Which by the way is (17.5d X 15h X 17w). Hopefully I can get some guidance. Now in my living is my second theater setup. I have a polk psw 202 on this system. At moderate levels the sub kicks, but if I turn it up at all, and I am not talking to loud it goes blaahh almost as if someone let the air out of a big balloon. Is the amp at fault or is it the driver?