The 3805 doesn't have HDMI connectivity, so you need analog cables to get the best sound.

On the back of the Denon there is a label named EXT IN. Plug one end of the cables there, and the other end to the Oppo's 7.1/5.1 audio out jacks.

The Oppo decodes True HD and DTS-HD internally, so you should be able to receive those advanced audio codecs.


*Michael*
AV123 Refugee - X-LS Encore, X-Voce, X-Omnis, Elt-Dpa's
Denon AVR-591
Magnavox NB500MGX BDP