Onkyo TX-NR646 review: Powerful, feature-packed receiver amps up the thrills The fully-loaded Onkyo TX-NR646 delivers cutting-edge technologies such as both Dolby Atmos and DTS-X surround formats, in addition to AirPlay, Wi-Fi and Bluetooth. Its sound quality is excellent for movie replay with exciting sonics and class-leading dynamics. Its superb connectivity includes eight HDMI inputs (one front, seven rear) and two outputs in addition to a phono input. This receiver is in excellent, almost new condition and brings a remote and antenna. If you're starting up a Home Theater or need to upgrade your receiver, this is a great opportunity to do so at a great price! Specs: DTS:X is a next-generation object-based surround sound technology that includes height to deliver a fully-immersive listening experience Supports Dolby Atmos Up to 5.1.2 & 7.2 Channels for captivating, multidimensional sound High instantaneous current enhances speaker control for accurate and dynamic audio reproduction with 170 W/Ch. (6 Ohms, 1 kHz, 0.9% THD, 1 Channel Driven, FTC) and 100 W/Ch. (8 Ohms, 20 Hz-20 kHz, 0.08% THD, 2 Channels Driven, FTC) 4K/60 Hz-Capable HDMI 2.0a Terminals for UltraHD and supports HDCP 2.2 for premium 4K/Full HD video streaming and broadcast Built-in Bluetooth, Wi-Fi and Airplay with Pandora and Spotify to stream virtually any audio from your smartphone, tablet, or PC for clear and powerful sound