The blu-ray player DN-500BD Professional from Denon is connected to the TV via HDMI, which provides high-quality image and sound. The device can record Blu-ray discs. Through the built-in USB media player, you can connect an external hard drive or USB stick and watch the content you have already saved. You can connect wired to your local network and stream a program or download software updates online, as it has ethernet. The device has a digital audio output coaxial. The coaxial output resembles the analog RCA but differs in resistance and the fact that it requires only one cable for the transmission of the audio signal.