Marantz Proprietary audio technologies for superior sound : HDAM and High Current Feedback Technology * Aluminum front panel and illuminated porthole display, polished and black anodized premium finish. Fold up door conceals additional 2-line FL display * 7 x HDMI in / 3 x HDMI out Lets you connect your HDMI-equipped devices with a single cable. Enjoy high definition audio and video on up to 3 displays. * Multi Zone HDMI output allows playback of 2 different video sources simultaneously on 2 televisions, * Audyssey MultEQ XT, Dynamic EQ and Dynamic Volume