The Yamaha YHT-900 includes a 6.1-channel receiver, DVD Changer, and provides numerous sound processing Options. Benefits include the ability to purchase an entire Yamaha home entertainment system in just one box. The Yamaha YHT-900 includes the DV-C6480 DVD changer, Yamaha's six-piece NS-AP580 speaker ensemble and the YST-SW205 subwoofer. As well as the HTR-5560 6-channel home receiver, which delivers 75 watts per channel, and many multi-channel decoding and processing options. This Yamaha home theater system receiver (HTR-5560) is a 6.1-channel receiver that uses Yamaha's Digital ToP-ART Technology to ensure clear transmission. It offers four optical inputs, one coaxial digital input, and a digital audio output. The Yamaha YHT-900 HTR-5560 also provides Dolby Digital EX and Matrix 6.1-channel, DTS Digital Surround, DTS-ES, DTS-ES Matrix, and Dolby Pro Logic II decoding. The 5-disc DVD changer plays DVD-Audio, DVD-Video, CDs, and VCDs. It plays back CD-R/RW discs, DVD-RAM discs, and MP3s. Yamaha's Quad-Field Cinema DSP and Virtual Cinema DSP are incorporated to offer 21 surround programs. Using Virtual Cinema DSP, this Yamaha home theater system also uses just two speakers to provide a multi-channel surround experience. Using Yamaha???s patented SILENT CINEMA technology, a realistic surround movie effect is possible with ordinary headphones. When a source is selected, the receiver automatically chooses the best quality input connected, making the same automatic selection for decoding, and down the hierarchy from discrete multi-channel, to matrix, and then stereo. This Yamaha home entertainment system also includes has 5 video inputs and 2 video outputs, all with S-video connections and RCA jacks.