High definition audio support for Blu-ray such as Dolby TrueHD and DTS-HD 1080p and 3D pass through capabilities Minimum Signal Path for clear audio and video signal High-performance 192kHz/24-bit D/A converters for all channels Audyssey MultEQ XT, automatically sets the speakers to suit the room’s listening environment and the speakers’ characteristics Audyssey DynamicEQ, improves surround effects during low volume levels Digitally transmitted Play function for iPod and iPhone (via USB) for best sound quality Denon’s proprietary Compressed Audio Restorer, to restore sound quality from compressed music sources