A look at the impressive front panel of the TX-RZ840 reveals a component designed for one purpose: to amplify your smile with increasing volume. The thick chassis is equipped with custom parts tested and tuned to THX Certified Select reference standards, handling massive power flows for sound you can feel emotionally and physically. In addition to 3D surround support for IMAX Enhanced content up to 11.2 channels and a fine touch that brings stereo music to life, the receiver serves as a hub for whole-home entertainment with next-generation network audio that integrates AirPlay 2, works with Sonos, includes Chromecast, and boasts more than 802.11ac Wi-Fi. The three-zone D/A audio distribution can be easily managed from your smartphone. With state-of-the-art connectivity and integrated custom installation interfaces, it is the visceral presence of the TX-RZ840 that you will find hard to resist.