Congratulations on th ejob John - what a poetic name for this new opportunity. As far as the sub goes, either works (I prefer SVS). I don't know what "large room" means, but that doesn't really matter. Set aside an hour and call both HSU (yes - "sue") and SVS and talk to them. They''ll walk you through some questions and ask about things you may not have considered. You may even be surprised to find you can get a smaller sub.