Presence speakers supplement the sound from the front speakers with extra ambient effects produced by CINEMA DSP. These effects include sounds that Filmmakers intend to locate a little farther back behind the screen in order to create more theater-like ambiance. Place these speakers at the front of the room about 0.5 - 1 m (1 -3 ft) outside the front speakers, facing slightly inwards, and about 1.8 m (6 ft) above the floor.
NOTE: The Presence speakers are also utilized if the receiver has the Dialog Lift feature that adjusts the height of the front and center channel sounds by assigning some of the front and center channel elements to the presence speakers. The larger the parameter, the higher the position of the front and center channel sound.