The SR7002 is a no compromise digital surround receiver, built to excel in the reproduction of movies, music, and functionally. It offers the very latest in High Definition video switching and up-conversion for the very best picture quality. The SR7002 also supports all the multi channel audio formats for an impressive, enveloping 360 degree surround sound. Room Calibration by Audyssey MULT EQ automatically tailors the sound to suit the room which allows a perfect recreation of HD audio such as Dolby Digital Plus, Dolby TrueHD and DTS HD. The SR7002 is built to Marantz standards with refinements such as video conversion, 4in and 2out HDMI 1.3 video switching with I/P conversion for analogue signals. Audio enhancer for compressed audio such as mp3 and WAV formats. Independent power supply circuits are incorporated for the FL display, audio and video sections of the receiver for maximum separation, clarity and dynamic range make the SR7002 to a excellent AV-receiver, fully in line with Marantz traditions.