This 7.2-channel AVENTAGE network AV receiver features Dolby Atmos and DTS:X for surround sound realism. With the latest in HDMI technologies, experience movies in stunning 4K Ultra HD and high dynamic range (HDR). In addition, Hybrid Log-Gamma and Dolby Vision Compatibility provide incredible contrast, smooth tone and rich, bright colors. The free MusicCast app makes it easy to access your music library and streaming music services. Add audio in up to 9 additional rooms with MusicCast wireless speakers or other MusicCast devices. Connect wirelessly via Wi-Fi, Bluetooth and AirPlay wireless connectivity. Additionally, a phono input for vinyl playback, advanced HDMI zone switching and Zone 2 control options provide added system versatility. The Reference Premiere RP-280FA floorstanding speaker is built upon the same technology and power as our RP-280F floorstanding speaker, but with an elevation channel integrated into the top of the speaker to reflect sound off the ceiling to deliver the overhead Dolby Atmos experience. To put it simply, Dolby Atmos is the greatest advancement in home and cinema audio since surround sound. Sound editors now have the ability to pinpoint a single sound and move it around, above and through the listener.