Perhaps what I would consider the most important is a shorter say 7 feet ceiling behind the speakers and then head updward at a nice slope from there.
I would also want the side walls to fan/toe outward as they go from front (behind the speakers) to back. But I would probably not want the room any deeper than perhaps 22 ft and I would want the room entirely closed off to pressurize.
So I guess the room dimensions would be something like 13 ft wide by 7 ft high behind the speakers. Then fanning out and up to perhaps 17 ft wide and 12 feet high at the back of the room.
I would also half-round all corners with a large radius or at the very least all corners behind the speakers.
The other things are pretty common ie lack of windows, install bookshelves, thick carpeting and pad, etc..
-IMO
I would also want the side walls to fan/toe outward as they go from front (behind the speakers) to back. But I would probably not want the room any deeper than perhaps 22 ft and I would want the room entirely closed off to pressurize.
So I guess the room dimensions would be something like 13 ft wide by 7 ft high behind the speakers. Then fanning out and up to perhaps 17 ft wide and 12 feet high at the back of the room.
I would also half-round all corners with a large radius or at the very least all corners behind the speakers.
The other things are pretty common ie lack of windows, install bookshelves, thick carpeting and pad, etc..
-IMO