I have the Ascents and they sound great. I am using the Depth(the smaller M/L sub)and it integrates very well with the Ascents. The Descent is an incredible sub and if your room isn't the size of the Sistine Chapel-I think you'll be fine. In fact if your room is on the small/medium size I would save your money and get the Depth. For shipping box dimensions E-mail Martin Logan. If I have time tommorow I'll measure my Ascent boxes.