Fully discrete power amplifiers for all 7 channels (95 W x 7 ch, 8ohm 20-20kHz 0.08%). Delivers the sound quality you"ve come to expect from Denon. * 3D pass-through technology Enjoy 3D video entertainment with dynamic surround sound. * 4K video support (4K video upscaling, video passthrough and GUI overlay) * Mobile App Control Take control of your Denon receiver from your smart device with the Denon Remote App. * Front Panel USB Input Direct digital play for iPod, iPhone and USB drives.