The Amazon Music service rolled out limited support for spatial audio in 2019, today it adds support for more devices and even more albums you can listen to. This feature is free for subscribers on the Unlimited tier. 360 Reality Audio is now supported on Sony’s SRS-RA5000 or SRS-RA3000 wireless speakers, as well as home theater systems like the HT-A9, HT-A7000 or HT-A5000. Amazon’s Echo Studio is supported too, of course. This works through Alexa Cast on Android and iOS devices. Dolby Atmos support for the Sonos Arc and Beam (Gen 2) soundbars is coming in the next few...
Source: https://www.gsmarena.com/amazon_music_adds_spatial_audio_support_for_more_devices-news-51498.php