For pristine stereo sound, the P7700 incorporates a built-in stereo microphone, an external microphone input, a HDMI mini connector and HDMI-CEC support.
Other advanced features now included in all Denon receivers are HDMI 1.3a Repeater Inputs with Deep Color, xv-Color and CEC (Consumer Electronics Control), analog-to-HDMI conversion and HD Audio decoding from Dolby and dts.