Onkyo TX-NR636 Receiver, Home Theater Key Features of the TX-NR636: Channels: 7.2. Video: HDMI ports support 4K/60 Hz resolution. Audio: Dolby Atmos, DTS-HD Connectivity: Built-in Wi-Fi and Bluetooth. HDCP 2.2 supports streaming in 4K. *Important Information: The device is old, about 10 years old, but works like a charm. The device has a little dirt, dust. For your information, the device is 110w, get a converter and you'll be fine, I used a converter. General Features: 7-channel amplifier. 95 watts per channel into 8 ohms (20-20000 Hz) with 0.08% total harmonic distortion, with two channels driven. Dolby Atmos processing for use with in-ceiling or "up-firing" speakers for more immersive surround sound (firmware update required). Analog-to-HDMI video conversion (up to 1080p and 4K) with Marvell Qdeo video processing. Inputs and Outputs: HDMI 2.0 Audio/Video Switching: 7 inputs, 2 outputs (includes front-panel MHL-compatible input). Component Video Switching: 1 input, 1 output Composite Video Switching: 3 inputs, 1 output Digital Audio Inputs: 1 optical and 2 coaxial 6 analog stereo audio inputs Phono input for direct connection of a turntable Pre-out terminals for two subwoofers Front-panel USB port for audio playback from USB storage devices. Ethernet port for network connection - Outputs for 9 speakers (Front L/R, Center, Surround L/R, Back Surround L/R, Zone 2 L/R). The receiver can power a maximum of 7 channels simultaneously.