Yamaha Rx-V4A 5.2-Channel Av Receiver with 8K Hdmi and MusicCast brings Yamaha home theater performance to movies, games and music with 5.1/5.2-channel surround sound, Hdmi switching, 4K/8K video support where applicable, wireless streaming and MusicCast app control. It is designed for simple setup, flexible source connection and clear, dynamic playback in a compact black Av receiver chassis.