THanks for the replies.

I don't have that much of a problem spending the money for good bass - and I am looking forward to the nice effect it will have for movies.

My concern was will I be able to tell the difference between a $350 sub and a $1100 sub and leads me to another question.
If I spend $1100 on a EP400 - would I be better off getting two $550 subs from another manufacturer?

Thanks again for your help