An oddly shaped NYC apartment. The width is about 12 feet, but open plan through to the dining room and kitchen. Actually one room.
The width changes, both walls are slanted. Starting at 11 ft by the windows and opening to 15 feet on the open end.
10 foot ceilings with floor to ceiling windows. A room that was made for radio.
Speakers are 7.5 feet apart and same to listening position, which is against windows.