That DC is way better than the W7. Wouldn't be a good choice on your part. But its your sub you can do what you want with it.ill trade you a 12" dc level four for one?
then use just 1 x w7. there isnt a subwoofer thats better or smaller, maybe a little smaller but by the time you build a box etc?i love the w7s i jus want sum room back in my truck w/o doin a blow through system... u kno