With 9 channels of amplification, up to 4 independent subwoofers, Dolby Atmos and DTS:X, plus IMAX Enhanced and Auro 3D, the AVR-X3800H envelops larger living spaces in theater quality sound. Enjoy amazing 8K video quality and with HEOS® built-in, wirelessly stream and share online music between rooms. Immersive sound from 9.4 channels, Dolby Atmos, DTS:X, and IMAX Enhanced - Simple, intuitive setup, including Audyssey Room Correction Suite - HEOS Built-in, with WiFi and BT - Configuration flexibility with 11.4 channel processing capability and Pre-Amplifer mode - Increased HDMI 2.1 Connectivity with six 8K inputs (6/3 total HDMI in/out) - New HD GUI , AIOS 6.0 New Networking Platform (Module + Antenna) -Griffin Lite XP - Upgraded DSP with higher calculation power - Auro 3D processing -4 independent subwoofer pre outs - Dirac Live Upgradability - HDMI +5V output power 300mA capability for all output (incl. Zone2 output)