Is HDMI better than aux?
AUX only supports 2.1 channels of audio, while digital optical supports 5.1 channels, and HDMI can support over 7.1 channels of audio. AUX (analog connection) will never be as good as Digital Optical or HDMI (digital connection). Is HDMI better for audio? The biggest difference is that HDMI can pass higher-resolution audio, including the formats found on Blu-ray: Dolby TrueHD …