Dolby Dimension has the ability to virtualize content from any of your Bluetooth source devices to provide a more immersive, cinematic experience.  By default, Virtualization is turned on in Dolby Dimension.  In order to change the setting, you may go into the Dolby Dimension mobile application where you will see the Virtualization setting on the home screen.  There, you may toggle it on or off depending upon your preference.  This setting is persistent per source device.