Most all speaker perform at there best has far as possible away from both front and side walls, my dynaudio S 25,s are 8.5 ft from the front and 6 ft from the sides leaving 7 ft apart in a 19x33x10.3 room.
I would imagine the heritage in my opinion is a modern day s25 would be best with lots of space as well.
I would imagine the heritage in my opinion is a modern day s25 would be best with lots of space as well.