i wouldnt buy that, especially b/c its sealed. id build your own if its sealed and its small. and i have never built a box before so im not a pro telling you its easy. depending on my subs, if i get 2 DPs im gonna build my own sealed box. if not ill either try and build a ported or have someone here build it for me.
also, check pawn shops. they have the same quality build as that box and no shipping