I have my pair in a 12' X 15" room with the speakers on the short side. The speakers are about 6.5 - 7 ft apart from the center of the woofers and the back of the speakers are
30 inches from the back wall. In my room with an 8' ceiling, they sound better facing straight ahead with a very slight toe in. When I spaced the speakers more than 7ft apart, it
didn't as good the sound was less cohesive. I hope this helps.