Sony - BRAVIA Theater Bar 8 with 11 speakers, Dolby Atmos/DTS: X - Black

Hi Sage, thanks for your question. No, you don't need more subwoofers. The HTA8000 soundbar does not support the use of multiple subwoofers directly. You can expand the audio experience with optional wireless subwoofers and rear speakers, but only one subwoofer can be connected at a time. The connection for an optional subwoofer or rear speakers is wireless. Hope this helps. BRAVIA Theatre Bar 8 combines physical and phantom speakers, creating a wider surround sound field that covers more of the room. Now more people can enjoy the same immersive surround experience. By using phantom speakers, 360 Spatial Sound Mapping technology achieves wider coverage than conventional virtual surround systems. Bring authentic cinema surround sound quality to your living room. BRAVIA Theatre Bar 8 not only supports industry-standard formats including Dolby Atmos® and DTS:X®, but also has IMAX® Enhanced certification. ~Earl

Hi Richard, Thank you for reaching out. It sounds like there may be a timing mismatch in the communication between your cable box, TV, and soundbar. We recommend following these steps to establish a stable connection and resolve the delay: 1. Perform a "Handshake" with your devices: A fresh connection often resolves sync issues. Disconnect the Cable box, Soundbar, and TV from their electrical outlets for 2 minutes. Then, reconnect them in this specific order: TV, Soundbar and Cable box. 2. Ensure your TV is Up to Date: Software updates often include stability patches for external audio devices. You can check for updates by navigating to: [Settings] > [System] > [About] > [System Software update] > [Update your TV Software]. 3. Adjust the Digital Audio Output to PCM: Since this issue is more prominent with cable TV, changing the audio format can help bypass processing delays. Set your TV to PCM by going to: [Settings] — [Display & Sound] — [Audio output] — [Audio system settings] — [Digital audio output] — [PCM]. If the issue persists, please refer to our detailed troubleshooting guide for further sync adjustments: The audio and video on my TV are out of sync or there's an audio delay https://www.sony.com/electronics/support/articles/00026069 If you need personalized assistance, our technical support team is ready to help. You can contact them directly here: https://us.esupport.sony.com/support/s/support-contact?language=en_US&category=tv We hope this information helps! Thank you for choosing Sony! Best regards, Dominick

This soundbar has a total of 11 speakers.

Yes, it has bluetooth connectivity.

Yes, it can be mounted on the wall.