We have a room about that size, but it has additional issues. The north side of the room is all glass; the south side opens onto two open areas. Short of building walls and losing windows, it is never going to be a great room for critical listening.
Knowing it was going to be a compromise, we added additional speakers. We have a set of fairly large floor speakers and a set of bookshelf speakers mounted high. The room sounds much fuller now, without it looking too odd. We’re still planning to build another room with better acoustics, but the big room is much improved and perfectly acceptable for entertaining and casual listening.
We have a room about that size, but it has additional issues. The north side of the room is all glass; the south side opens onto two open areas. Short of building walls and losing windows, it is never going to be a great room for critical listening.
Knowing it was going to be a compromise, we added additional speakers. We have a set of fairly large floor speakers and a set of bookshelf speakers mounted high. The room sounds much fuller now, without it looking too odd. We’re still planning to build another room with better acoustics, but the big room is much improved and perfectly acceptable for entertaining and casual listening.