The receiver offers everything it promises. Simply set it up, just calibrating the boxes and already kanns go. The technical data and official tests can be found everywhere. But the sound you have to give yourself and convinced simply. From my old boxes of receivers has just made new. Nevertheless, I have also the Pioneer S-HS100 ordered 5.1 and now my 25 m2 cinema. Moreover, everything worked right away: Bluetooth detection of eg mobile phone, connect the notebook, Playstation, TV, W-Lan, Lan. The handling is very intuitive with the menu. Can the Sony STR-DN850 therefore only recommend.