OK. Just got mine yesterday. 3 inch hole through both outer and inner carton but no damage to the cabinet luckily.
You can look at the specs showing the size of this sub but until I unpacked it, I couldn't believe the size. wow.
I need to play with it this weekend but the one thing I did notice was that the AC plug is a little loose in the back of the sub and it is pushed in all the way Anyone else notice this?

I could wrap a little electrical tape around it and maybe that would help.