Hello Chris,<br /><br />Thank you for purchasing the Samsung HW-C400 Soundbar. We appreciate you sharing your feedback regarding your recent purchase. <br /><br />If purchased brand-new and unopened, please contact Samsung Customer Support and a representative will gladly help you. If purchased in open-box condition, we recommend contacting Walmart directly for assistance. We hope your issue is resolved in a timely manner.<br /><br />Should you have questions regarding the usage or setup of your product once you&#39;ve received it, please contact Samsung Support at 1-800-SAMSUNG, 8AM - 12AM EST, 7 days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. <br /><br />~ Samsung Solutions

Hello Lisa,<br /><br />Thank you for purchasing the HW-C400 Soundbar. I am sorry to see that you are not completely happy with your new unit. <br /><br />Please contact Samsung Customer Support for step-by-step troubleshooting and optimizing assistance. Call us at 1-800-SAMSUNG (ask for Soundbars), available 8 AM – 12 AM EST, 7 days a week.<br /><br />LiveChat with an agent by clicking the ‘Support’ link on the Samsung website.<br /><br />~Samsung Solutions

Hi mike,<br /><br />Thank you for taking a moment to review the Samsung HW-C400 Soundbar.<br /><br />By pressing the SOUND MODE button on your soundbar remote and then selecting the desired sound effect by choosing SURROUND SOUND or STANDARD. By pressing the TONE CONTROL button, you can adjust the volume of the treble or bass sound. Press the button to select TREBLE or BASS and then adjust the volume between -6~&#43;6 by using the Up/Down buttons. 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 &#43;6 using the Up/Down buttons. (Make sure the Sound mode is set to “STANDARD”. Additionally, using the WOOFER button on the remote, you can adjust the subwoofer’s volume between -6 to &#43;6 by toggling the button up or down. To set the subwoofer volume level to 0, press the button down. <br /><br />If you need more help, Samsung is here for you. Please call us at 1-800-SAMSUNG, 8AM - 12AM EST (Ask for Soundbars), 7 days a week. Our Live Chat agents are also available by clicking on the ‘Support’ link on our website. ~ Samsung Solutions

Hello DrDeb,<br /><br />I&#39;m sorry to hear that you are dissatisfied with the sound quality of your C400 Soundbar. <br /><br />You can optimize your audio performance to your liking by pressing the SOUND MODE button on your soundbar remote and then selecting the desired sound effect by choosing SURROUND SOUND or STANDARD.<br /><br />By pressing the TONE CONTROL button, you can adjust the volume of the treble or bass sound. Press the button to select TREBLE or BASS and then adjust the volume between -6~&#43;6 by using the Up/Down buttons.<br /><br />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 &#43;6 using the Up/Down buttons. (Make sure the Sound mode is set to “STANDARD”.<br /><br />Additionally, using the WOOFER button on the remote, you can adjust the subwoofer’s volume between -6 to &#43;6 by toggling the button up or down. To set the subwoofer volume level to 0, press the button down.<br /><br />I hope these tips help you enjoy your new product. <br /><br />You can always contact us for further help at 1-800-SAMSUNG (Ask for Soundbars), 8 AM – 12 AM EST, 7 days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website.<br /><br />~ Samsung Solutions