Are u sure it's 12 square feet? Seems too small for a room. 12 square feet is around 3 feet x 4 feet. Maybe you mean 12 feet x 12 feet. HT Kaki is right. Room size is very important. If you room size is big, better opt for bigger speaker. Pay more attention to the center speaker and subwoofer if you main application is movie or PS3 games.