ok guys looking do to a budget build since i had to do some extra stuff for college... was going to do 2 level 4 dcs but the moneys not there and audiosavings has a decent deal on 3 REX15D4 subs sooo i was gonna try for 3 of those just wondering is this at all possible with demension 20deep 20 high and 42 wide.. and honest opinion should i even consider doing this.. thanks