This so called Stage Manager is basically a brain of a home theatre system. It can dim the room lights to the perfect level to suit whatever is playing on the screen. Acoustically it can perform up to 7.1 which is equivalent to Dolby TrueHD sound, it can also support up to two subwoofers. The visual side is even more remarkable as it can support both HD DVD and BluRay meaning it can take full advantage of Bang & Olufsen’s excellent audio and visual products. as well as other companies products.