Seven speakers and one subwoofer produce a sound experience worthy of the cinema with Dolby 7.1 surround. Each speaker in the set has a distinct role. After you have acclimated yourself to those respective roles, you can decide how to position and angle your Dolby speakers, remembering to keep the speakers at or near ear level (when sitting down) no matter where you place them in the room.
A clear path from the speakers to the listener should be created. If you position any speaker behind a piece of furniture, that clear path is occluded, and so is the sound. Adjust and reposition speakers in an effort to determine where you will experience maximum sound production. Keep in mind, too, that bare walls and floors can mess with the balance of sound coming from your 7.1 system. Putting speakers in a room with carpeted floors and covered walls can actually affect the balance in a positive way.