terry - You can change the Sound Mode by going to: Settings > Sound > Sound Mode. You can also customize the sound with Expert Settings by going to: Settings > Sound > Expert Settings. Should you need further assistance, please reach out to Samsung Support at: 1-800-SAMSUNG (ask for TVs), available 8AM - 12AM EST, 7 days a week, or Chat with us on Samsung.com: https://www.samsung.com/us/support/contact/ ^Gina