4K Ultra HD HDMI Support Providing complete compatibility with the latest HDMI standards, this AV receiver delivers transmission of 4K video at 60 frames/second pass-through. It also supports HDR (high dynamic range) video including Dolby Vision and Hybrid Log-Gamma. New Heights in Sound Dolby Atmos and DTS:X Compatibility with these amazing sound technologies creates an extraordinary experience. Experiences Expanded CINEMA DSP 3D This Yamaha proprietary sound field creation technology was created by combining measured sound field data with digital signal processing. Easy Sound Optimization with YPAO YPAO (Yamaha Parametric room Acoustic Optimizer) analyzes the room acoustics and your system, then precisely adjusts various audio parameters to provide the best sound for your room. By placing the supplied microphone at your listening position and switching YPAO on, the system is automatically tuned for optimum performance in your home. Wireless Surround Speakers Combine this AV receiver with the upcoming MusicCast 50 or MusicCast 20 wireless streaming speakers and enjoy the convenience of creating a home theater with wireless rear speakers in a 5.1-channel system. What’s more, you get stunningly realistic sound with a clean, clutter-free setup. Easily turn your current living room into an entertainment environment where you can fully enjoy movies, music and games. Multi-Room Audio MusicCast Start with this AV receiver in your home theater and expand to other rooms over time with MusicCast speakers, sound bars or Hi-Fi gear. Stream your music and TV sound everywhere using your existing Wi-Fi network. Amazon Alexa on MusicCast “Alexa, turn up the volume.” With Alexa voice control integration, all you have to do is ask. The receiver offers full compatibility with Amazon’s range of voice control devices, using the Smart Home skill and MusicCast skill to play music, link rooms and more. Welcome to the smart home.