Brand: Onkyo Number of channels: 7.2 Channel Feature: Surround Sound, Upscaling, HDMI Supported sound codec: Audyssey DSX Onkyo s acclaimed WRAT amplifier with three-stage inverted Darlington circuitry delivers cinema-like power in the home . Onkyo s acclaimed WRAT amplifier with three-stage inverted Darlington circuitry delivers cinema-like power in the home . With Audyssey DSX expansion, you can add extra Height channels for more enveloping surround sound, while 2EQ acoustic cor rection guarantees optimal performance in any room. Eight HDMI inputs handle 3D content, HD audio, and video display upscaled to 4K with onboar d Qdeo technology. The MHL/HDMI input lets you connect a smart phone for smooth 1080p playback on your TV. Wireless home networking, meanwhile, opens up an exciting world of internet radio and cloud-based music streaming. You can even enjoy your multi‑format PC‑based music.