i have the router, no biggie. the speakers need less than 1 cubic foot, and the box is like 11.25" x 15" x 11" per chamber it has 3 chambers, hehe. so, there is more than enough enough space. really, i'm juss lookin' for something fun. i found another speaker for like $40 on ebay. it won't take much work to change the box for bottom mount set up. it's all prefectly sealed, and MDF, so hopefully it'll work out & sound good. and i bet it'll be one of the only, if not the only, del sols w/ 3 subs right behind the seats