I dont know who you are buying your X.X.X from, but $480 is INSANE. I know M/D Audio sells them for $390 + $25 for shipping, and you can order them DIRECT from RE audio for $359 + $25 shipped. Used subs are even cheaper, but try finding someone who wants to give up a X.X.X is very, very hard. I have never heard any of these subs, but after weeks and weeks of exhaustive research, I am going with 2 X.X.X 10's