Yamaha HTR-5850 XM-Ready 6.1-Channel A/V Surround Receiver (Black) (Discontinued by Manufacturer) Full-featured 630-watt (105 watts x 6) digital home theater receiver Built-in Dolby Digital EX, DTS, DTS-ES, DTS Neo:6, DTS 96/24, and Dolby Pro Logic IIx decoding XM satellite radio ready; requires Audiovox CNP-1000 digital antenna to receive XM signal Quad-field Cinema DSP with 14 surround programs; Silent Cinema headphone listening mode Measures 17.12 by 6.31 by 16.38 inches (W x H x D); 2-year warranty