One more question, I understand when talking about EP800's there are only woofers to contend with. But say with two EP600's or EP500's, do the ports pose any problems in doing this?

I want to see Obsi turn his eD subs towards eachother, crank it up, and see if he can't shift the earth axis point a smidge. \:D

My Stuff :

M80's
QS8's
VP150
EP800
Denon 4802
Emotiva XPA-3
Samsung BD-P3600
Sharp 65 Inch Aquos LCD