Yamaha HTR-4063BL 5.1 Channel 525 Watt AV Receiver (Each, Black) (Discontinued by Manufacturer) 5-channel 525W powerful surround sound (105W x 5) iPod/iPhone compatibility with optional YDS-12 Universal Dock Bluetooth (A2DP) compatibility with optional Yamaha Bluetooth Wireless Audio Receiver YBA-10 HDMI (V.1.4 with 3D* and Audio Return Channel) YPAO sound optimization for automatic speaker setup