The TX-SR577 rewrites the rules of affordable home theatre by combining superb video processing, convenient connectivity, and 7.1 channels of spectacular high-definition audio. With its four HDMI 1.3a inputs, the TX-SR577 lets you hook up, say, a Blu-ray Disc player, an HD set-top box, an upscaling DVD player, and a PlayStation® 3 gaming system. HDMI is also the conduit for the superb, master-quality audio of Dolby® TrueHD and DTS-HD Master Audio™. The very latest Dolby technology, Dolby® Pro Logic® IIz, gives you the option of incorporating front height channels to enhance the spatial sensation of music, movies, and video games.