Onkyo TX-NR3030 11.2-Ch Dolby Atmos Ready Network A/V Receiver w/ HDMI 2.0 + Onkyo SKH-410 Dolby Atmos-Enabled Speaker System (Set of 2) Supports new Dolby Atmos surround format for exciting multiplex sound. Dolby Atmos transports you from the ordinary in 135 W/Ch. (8 Ohms, 20 Hz-20 kHz, 0.08% THD, 2 Channels Driven, FTC) and THX Select2TM Plus Certified for Theater-Refer HDMI 2.0 Terminals for 4K/60 Hz Ultra HD Entertainment Two (2) Dedicated Dolby Atmos Enabled Speakers with Dolby Atmos