2-channel receiver with 8K video and 3D audio. Audio channels: 7.2. Power per channel: 80 watts. Full 8K/60 Hz and 4K/120 Hz support for stunning 8K content. Supports Dolby Atmos, Dolby Atmos Height Virtualization Technology, DTS:X, and DTS Virtual:X - enjoy an immersive, three-dimensional audio experience. HDMI outputs: 1, HDMI inputs: 6. Integrated HEOS - wireless multi-room music streaming throughout the house. The AVR-X1800H DAB delivers captivating entertainment experiences with 8K video and 3D sound. As a 7.2 or 5.2.2 configuration with Dolby Atmos and DTS:X, it fills small to medium-sized rooms with excellent sound. With HEOS Built-in, music can be streamed wirelessly to all HEOS-enabled speakers in the house. DTS Virtual:X. In traditional 5.1 or 7.1 speaker configurations (or even with a 2.1 configuration) without ceiling, height, or Dolby Atmos speakers, virtual height effects from stereo, multi-channel PCM, or DTS-encoded multi-channel content, such as DTS-HD, DTS-HD MA, as well as DTS:X object-based content can be reproduced and made virtually audible. HDMI eARC connection: Dolby TrueHD and DTS-HD in full resolution. Unlock the full potential of your 4K content. Enhanced Audio Return Channel (also known as eARC) is the next generation of ARC. eARC delivers multi-channel audio formats like Dolby TrueHD and DTS-HD in full resolution through your existing HDMI connection, providing you with a realistic surround sound experience that immerses you in your favorite movies and moments.