Hi Frank,
The Sony Soundbar has a Dolby Atmos Logo on its top. Also, at the Sony Electronics Website - https://www.sony.com/electronics/sound-bars/ht-x9000f/specifications#features - under specifications it shows this soundbar is capable of Dolby Atmos.along with:
Dolby® Digital, Dolby Digital Plus™, Dolby® True HD, DOLBY ATMOS®, Dolby® Dual mono, DTS®, DTS-HD High-Resolution Audio™, DTS-HD Master Audio™, DTS-ES, DTS 96/24, DTS:X™, LPCM (2ch/5.1ch/7.1ch), DSD (2ch/5.1ch),