Ive been trying to get ahold of rd to see what was put on it. It took so long for me to get it i actually canceld the order but it still came. I know there is a titanium top plate, stiffer cone i believe with multiple spiders. Im really not sure. IF i could get ahold of him i could figure out what i did to it. I pretty much put every upgrade on it so if you callled and you could maybe get an idea of whats on it. Ill have to look at the mounting depth, dont know that off hand and i wouldnt know for box specs really. I just do what i like in a box and everyone is different but i never even ran this sub so i dont know.