kicker L7 box

hey guys im plannin on gettin a 2001 gt in the next 5 months or so but anyways i wanted to know if this box

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3063812496&category=14945#ebayphotohosting

would sound any good with a kicker L7 in it, and if u guys dont think so, or can find a better priced box please let me know.

-jimbo

oh btw i also have the Alpine CDA-9813 head unit, which sounds awsome. but after its played for a while (30+ min or so) it starts sounding mushy.

i only have it hooked up to the built in alpine amp at the moment, and 25 is about as loud as it will go without distorting.

and if it matters i have it hooked up to the power through my fuse box, because since its 60X4 W it said it needed to be hooked up directly to a power supply, but i dont see why it would matter that its hooked up to an inline fuse......

any suggestions on why is doing this would be GREATLY appreciated.