Hi Slotlady, Thank you for taking a moment to review the Samsung HW-QS730D Soundbar. You can try optimizing audio performance for your specific content by pressing the SOUND MODE button on your remote and then selecting the desired sound effect by choosing STANDARD, SURROUND SOUND, GAME PRO, VOICE ENHANCE, NIGHT MODE, or ADAPTIVE SOUND You can further adjust TREBLE and BASS via the TONE CONTROL button by pressing the UP/DOWN button on your soundbar remote. Press and hold the SOUND CONTROL button for about 5 seconds to adjust the sound for each frequency band. 150Hz, 300Hz, 600Hz, 1.2kHz, 2.5kHz, 5kHz, and 10kHz are selectable using the Left/Right buttons and each can be adjusted to a setting between -6 to +6 using the Up/Down buttons. (Make sure the Sound mode is set to “STANDARD”.) To control the volume of each speaker, select CENTER LEVEL or TOP LEVEL in Sound Settings, and then adjust the volume between -6 to +6 by using the Up/Down buttons. With the optional SWA-9500S Wireless Rear Speakers connected you can adjust the volume by using the provided Soundbar remote. Press CH LEVEL and select REAR LEVEL or REAR TOP LEVEL, then use the Up/Down buttons to adjust the volume within a -6 to +6 range. If the video on the TV and audio from the Soundbar are not synchronized, select SYNC in Sound Control, and then set the audio delay between 0~300 milliseconds by using the Up/Down buttons. If you need further assistance, please know we are here to help. You can reach Samsung Customer Support at: 1-800-SAMSUNG (Ask for Soundbars), 8AM - 12AM EST, 7 days a week. Our Live Chat agents are also available by clicking on the ‘Support’ link on our website. ~ Samsung Solutions