DESC: Combining the latest high definition audio technologies from Denons renowned line of versatile AV receivers along with our exclusive center-mounted Blu-ray disc player drive mechanism, the S-5BD provides superlative performance and unparalleled ease of use. The audio section is packed with the latest high definition surround sound decoders, including Dolby TrueHD and DTS-HD Master Audio. Setup is a breeze thanks to automatic configuration via Audyssey MultEQ room acoustic measurement and correction system, which detects the quantity and type of speakers, and provides precise tailoring of critical audio parameters for pristine sound quality (measurement microphone included). Audyssey Dynamic EQ provides rich tonal balance at all volume levels, and Audyssey Dynamic Volume smoothes out jarring volume peaks, such as TV commercial interruptions.