Bored at work so I'm sitting here pondering... My current HT setup is in my living room. 26ft X 15ft X 9ft = 3510 Cubic ft. Advantages:- Sounds great already! Disadvantages:- Bedrooms are directly above and I have kids. Can't go 7.1 because of doors/windows/fireplace Can't go bigger Screen/Display for same reasons My new room, which I've done nothing to over the past 12 months is MASSIVE. Advantages:- Completely blank room, can put stuff where I like. Can fit 7.1 (all full size) with ease and I get to use my 2 big B&W THX subs Can fit full front projection Not anywhere near bedrooms or other main living rooms so no volume level issues. Disdvantages Going to cost lots on building work/cabling & equipment Having measured and done my sums the main part of the new room is 13,500 Cubic Ft!!! That's 42 X 20 X 19(Pitched). I've checked my sums twice. (Think stone barn attached to house). The Big question... Is it possible to fill such a big space with good HT sound on a modest(ish) budget? Or should I just get used to keeping the volume down in the evening in the other room? Approx HT Budget (Audion & Visual) £10k at a push. I'll eventually replace and upgrade when I can, but this is as much as I can do to start with. I'm not after lists of kit I could get, merely whether it would be achievable inthis space. Thanks, Mark.