Yamaha HTR-3066 Home Theater Receiver HDMI 3D YPAO USB connection for Ipod Iphone Ipad or android phones and Tablets HTR3066 Discrete Amp Configuration for High Sound Quality, Surround Realism HD Audio with CINEMA DSP, Subwoofer Trim for Improved Sound Imaging Ultra HD (4K) Pass-through for Next Generation Super High Resolution Images HDMI with 3D and Audio Return Channel, HDMI CEC for Easy Operation YPAO Sound Optimization for Automatic Speaker Setup, SCENE for One-touch Start USB Digital Connection for iPod, iPhone and iPad on the Front Panel