The new Z-Base sound bars offer two analog audioinputs, one optical (toslink) digital input, one coaxial digital input - plus a front panel 3.5mm analog stereo input for convenient connection of an iPod or other portable audio device.
It of course has every type of hook up that a high-end player would have, including balanced XLR inputs for you audio folks and component RGBHV outputs for you projector guys and gals.
Whether connected to a current Denon receiver or other product, audio and video signals are sent via analog audio output and S-Video to the respective inputs on a connected device in order to view the GUI and hear the audio.