Our new house is under construction, still have time to do best. By the way, the listening room is my study room and my wife has promised not to make fun of what ever I do in my room in favor of getting better sound.
I'm planning to use wood to give ceiling an attic shape to prevent standing waves, altough the room is on the ground floor. Height will be 2.40m in front and back, middle will be 3m (I'm not sure to leave the space empty or to fill with rockwool).
But there is another alternative: to separate listening and studying rooms by a double sided bookshelf by leaving a passage for me and bass reflexes.
Which alternative would you choose to get better soundstaging+imaging and tighter bass with 40.1's?