Hello Mike, We appreciate you providing your feedback and experience with the HW-Q990D Soundbar. Please know there are a wide range of audio adjustments available to tune the sound to your liking. You can manually optimize your audio experience by pressing the SOUND CONTROL button (which looks like a gear), you can set the audio function such as Auto EQ, Spacefit sound, AVA, Voice Enhance mode, Night mode, Sync, Surround speaker mode, Virtual. The desired item can be adjusted using the Up/Down buttons. Alternatively, you can 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. You can try quickly optimizing the audio by pressing the SOUND MODE button on your remote, and then select the desired sound effect by choosing STANDARD, SURROUND SOUND, GAME, or ADAPTIVE SOUND. To control the volume of each speaker, press the CH LEVEL button on the provided remote. Then select CENTER LEVEL, SIDE LEVEL, WIDE LEVEL, FRONT TOP LEVEL, REAR LEVEL, or REAR TOP LEVEL. Once you find the channel you are looking for, adjust the volume between -6 to +6 by using the Up/Down buttons. There are multiple ways to control the bass levels for your new Soundbar. 1) Using the WOOFER button on the provided Soundbar remote. Use the woofer button by pushing forward or pulling backward on the button itself to adjust the bass levels between -12 or -6/+6. If you want to reset the bass to 0 then push the button in. 2) When you press the TONE CONTROL button, you can adjust the treble or bass levels between -6/+6. Alternatively, you can adjust all of these same settings and more within the SmartThings app. Download the app for your iOS or Android device and then connect your Soundbar to Wi-Fi. From here, you will be able to adjust all of the same settings as the provided remote, but with the added benefit of being able to see the changes on your smart device. 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

loginvivek, We appreciate you taking a moment to review the Samsung HW-Q990D Soundbar. You do not need to disable the rear speakers, however to utilize the 7 bad EQ the soundbar "Standard" mode must be set. You can manually optimize your audio experience by pressing the SOUND CONTROL button (which looks like a gear), you can set the audio function such as Auto EQ, Spacefit sound, AVA, Voice Enhance mode, Night mode, Sync, Surround speaker mode, Virtual. The desired item can be adjusted using the Up/Down buttons. One of the new and amazing features the HW-Q990D Soundbar has is Sound Grouping, which allows you to enjoy what's playing on your Soundbar and the Rear Speakers at the same time. Alternatively, you can adjust all of these same settings and more within the SmartThings app. Download the app for your iOS or Android device and then connect your Soundbar to Wi-Fi. From here, you will be able to adjust all of the same settings as the provided remote, but with the added benefit of being able to see the changes on your smart device. 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