Why does my sub have power but no sound?
Ensure the subwoofer has not been muted. Increase the volume level on the subwoofer. Ensure the speaker settings on the stereo system or TV have been configured properly to use the subwoofer. IMPORTANT: Certain speaker settings may disable the subwoofer.
Why does my speaker have no sound?
Check sound settings
Check to make sure your audio devices aren’t muted and haven’t been disabled. Select and hold (or right-click) the Speakers icon on the taskbar, and then select Open Volume mixer. Note: If you don’t see Speakers displayed, it may be in the overflow area. Select Show hidden icons to check there.