A:Answer Hi JohnK. The LG 65 inch Class 4K Smart UHD TV (64.5'' Diag), Model # 65UM6900PUA does not have an analog audio output for input to a stereo amplifier. It has an Optical Digital Audio Out in the back that you can use for that, but to do that, you will need to purchase a Digital/Analog Converter. The D/A Converter has an Optical Digital Audio In at one end and Analog Stereo RCA Outputs (Red/White barrel ports) at the other that you can connect to the audio in on your stereo amplifier. AS the name implies, the D?A Converter will convert the digital audio signal from the TV to an analog signal that your amplifier can understand. If your local Best Buy does not carry D?A Converters, you can find them on BestBuy.com...^IFV