DESC: The STR-DG520 5.1 channel A/V Receiver delivers the Full HD 1080p experience to your Home Theater System. This 1080p A/V Receiver features HDMI™ "Pass-through" and 1080/24p capability, making it compatible with HD sources The STR-DG520 also features a DIGITAL MEDIA PORT (DMP) connection, expanding your flexibility to play back music from various audio sources with one of the optional accessories (sold separately).