5.1-Channel - center two front and two surround speakers. Compatible with latest HDMI standards. Delivers transmission of 4K video at 60fps pass-through. Supports High Dynamic Range video. CINEMA DSP - supports playback of HD audio. YPAO optimization analyzes room acoustics and adjusts. Discrete amp configuration. Rich bass reproduction. Virtual CINEMA FRONT - surround sound with all speakers placed in front. AV Setup Guide for an easy install.