I'm went to buy an amp yesterday and when I was going to hook up my subs I was asking the guy that worked at the audio shop about my box. He said the box I have my subs in is crap, its a bandpass with a fiberglass window on the front and 4 ports on the top. He said they are really loud but the sound that comes out is no good and I will end up ruining my subs. Im just wondering what type of box I should get. I have 2 12" ultimate. I listen to rap, and have a jetta with lots of trunk space, so I was thinking about maybe getting a ported, any suggestions?