Hello All. Im new to car audio. I have a choice with either 12'' Alpine type R's or 12'' MTX sub w/ a vented box.. They both hit really hard. But im leaning more towards the MTX. without the box, the MTX wouldnt compare. But i mean, WOW!! IT HITS SOO HARD! but what should i do? Plus i can get the Type R's for dirt cheap at bestbuy because my gf works there. but i can also get the MTX for cheap because my cousin works at Circuit City. What should i do guys?!? please help me! im going back and fourth.