Onkyo TX-RZ610 7.2 Channel Network A/V Receiver 100 W/Ch. (8 ohms, 20 Hz-20 kHz, 0.08% THD, 2 channels Driven, FTC) and 170 W/Ch. (6 ohms, 1 kHz, 0.9% THD, 1 Channel Driven, FTC) from custom rz grade parts 8 HDMI in (1 front/7 rear) W/ 2 HDMI out (main & Sub) 4K/60 Hz-Capable 4: 4: 4 W/ HDCP 2.2, HDR and BT.2020 for Ultra HD and full HD video content Chromecast built-in, airplay, Wi-Fi, Bluetooth, tune in radio, Pandora, Spotify, Tidal, and Deezer for app-based Audio streaming (requires firmware update) AccuEQ room calibration equalizes the surround-sound to suit the room acoustics for crisply focused sound W/ accureflex which aligns the phase of up-firing height speakers Rz Series products are backed by a three-year parts and labor warranty