Speakers that image well and flourish in a large room will have the biggest sound stage because the room is bigger mostly.
OHM Walsh speakers typically image from wall to wall in any size room. The larger the room, the wider the soundstage.
mbls perform similarly and have the deepest and most 3-d soundstage I have heard when set up right in a large room with lots of room behind them.
I've heard Maggies set up optimally in a mid-room configuration create a room filling soundstage. Other planars set up similarly probably do the same.
I've also heard a stereo pair Martin Logan and Focal speakers set up near the front wall holographically fill a large acoustically lively rectangular room quite holographically with much of the sound seemingly coming from the rear of the room
I've also heard Dynaudio monitors set up wide and mid room along the long dimension of the room fill the most of the room with an an accurately defined soundstage from wall to wall.
OHM Walsh speakers typically image from wall to wall in any size room. The larger the room, the wider the soundstage.
mbls perform similarly and have the deepest and most 3-d soundstage I have heard when set up right in a large room with lots of room behind them.
I've heard Maggies set up optimally in a mid-room configuration create a room filling soundstage. Other planars set up similarly probably do the same.
I've also heard a stereo pair Martin Logan and Focal speakers set up near the front wall holographically fill a large acoustically lively rectangular room quite holographically with much of the sound seemingly coming from the rear of the room
I've also heard Dynaudio monitors set up wide and mid room along the long dimension of the room fill the most of the room with an an accurately defined soundstage from wall to wall.