The Denon Flagship AVR-X8500H powers the next generation of home theater with the worlds first 13.2 channel receiver that supports the latest immersive audio formats, including Dolby Atmos, DTS:X and Auro-3D. Built-in HEOS technology supports Amazon Alexa and takes music listening to the next level with wireless whole-home audio and voice control. Immerse yourself in multi-dimensional audio with Dolby Atmos. Enjoy a 7.1.6 or 9.1.4 surround sound speaker system with as many as 6 overhead speakers or Dolby Atmos elevation speakers for the ultimate home theater experience. All eight HDMI inputs (including one on the front) and three HDMI outputs feature HDCP 2.2 compatibility and the latest HDMI specifications, including 4K Ultra HD 60Hz video, 4:4:4 Pure Color sub-sampling, High Dynamic Range (HDR) and 21:9 video, 3D, and BT.2020 pass-through support. It is even ready for Enhanced Audio Return Channel (eARC) for 3D audio playback through TV apps. The feature will be enabled via a future firmware update. Control your Denon AVR-X8500H with your Smart TV remote via the HDMI CEC functionality associated with your Smart TV. Simply set HDMI Control to ON in your receiver, then set Smart Menu to ON and begin controlling the AVR-X8500H with your TV remote. The Smart Menu home screen provides you quick access to source and surround mode selections, the AVR’s setup menu and four Smart Selects. The AVR-X8500H owns a sophisticated DSP audio processing system that incorporates no less than four powerful high speed fourth generation SHARC DSP processors, which together have a combined continuous processing capability of 10 GFLOPS (10 billion floating point numerical computations per second).