A glance at the TX-RZ840’s imposing front panel reveals a component built for one purpose: making your smile wider as the volume goes higher. Its thick chassis is loaded with custom parts tested and tuned to THX® Certified Select™ reference standards, handling massive current flows for sound you feel emotionally and physically. Beyond 3D surround supporting IMAX® Enhanced*1 content up to 11.2 channels, and a finessed touch that breathes life into stereo music, the receiver forms a hub for house-wide entertainment with SMART A/V Receiver™ integrating AirPlay 2, Works with Sonos, Chromecast built-in*2, and more over 802.11ac Wi-Fi®*3. Three-zone powered D/A audio distribution is easily managed from your smartphone. With state-of-the art connectivity and custom-installation interfaces included, it’s the TX-RZ840’s visceral presence you’ll find most difficult to resist.