Hi Andrea,<br /><br />Thank you for taking a moment to review the Samsung HW-Q6CC Soundbar.<br /><br />To control the volume of the treble or bass sound, press the TONE CONTROL button and then adjust the volume between -6 to &#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 />Press the CH LEVEL button so you can adjust the volume of each speaker. CENTER LEVEL or TOP LEVEL can be adjusted using the UP/DOWN buttons from -6 to &#43;6.<br /><br />With the optional SWA-9200S Wireless Rear Speaker Kit connected you can adjust the volume by using the provided Soundbar remote. Press CH LEVEL and select REAR LEVEL, then use the Up/Down buttons to adjust the volume within a -6 to &#43;6 range. <br /><br />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), 8 AM – 12 AM EST, 7 days a week. Live Chat with an agent as well as manuals, software, and warranty info can be found at the ‘support’ link on our Samsung website.<br /><br />~ Samsung Solutions