Delivers five audio channels, one extracted audio channel and one LFE channel from a six channel source:
Two discrete channels for speakers at the front—left (L) and right (R).
One discrete channel for speaker at the center—center (C).
Two channels for surround speakers at the sides—left surround (LS) and right surround (RS). The discrete LS and RS channels are dematrixed into LS, RS, and back surround (BS).
One channel for surround speakers at the rear—back surround channel (BS). The back surround channel can be made into two channels by the receiver.
One low-frequency effects channel (LFE).
Describes the Dolby Digital EX discrete/matrixed hybrid Surround system. Source media, usually DVD is often branded with "Dolby Digital EX" logo. This format is used in some theatrical motion picture films.
Placement: The front speakers should be placed at the edges of the screen, toed in to face the central listening location. The center speaker should be placed behind the screen (when using projection) or over or under a TV. Side channel speakers should be placed to the left and right of the listening position, equidistant from the front speakers and the rear speakers. Rear channel speakers should be placed slightly behind the listening position, and should have a normal high-quality monopolar construction. Front speakers should be at ear height and surrounds should be above ear height.
