Placement of large surround speakers in Home Theater Posted January 27, 2018 This is the ideal situation for you to use the power of Dolby Atmos. That Marantz 6011 is the perfect solution to provide what you need here. You can choose either upfiring or ceiling mounted Dolby Atmos speakers. Allow your ceiling construction materials to make that decision for you, as you will need a flat drywall or flat wood ceiling for the upfiring. The location you are trying to place speakers in is the exact location where Dolby suggests placing the Atmos.