“When a device and/or connected playback system is not Dolby Atmos enabled, TIDAL will recognize this, and the stereo version of the track will be played. The listener will be notified with an in-app notification.”
As Prisma is stereo or two channel PCM only, and not Dolby Atmos enabled or Sony 360 Degree certified, the tracks are played back as two channel “PCM 2.0 44.1kHz” files and in a similar way that Master files cast using Chromecast are played back in “HiFi.” With AirPlay, again like with Master file playback, the file is identified as “Atmos” or “360” while the delivered file is PCM 2.0 44.1 kHz.
As a result, the Sony 360 and Dolby Atmos files do not sound as good in two channel play back as their stereo equivalents, presumably because the associated processing is not taking place. So, the recommendation is to play the stereo version of the track and select a derived multi-channel processor, with Dolby Music or DTS Neural X being the best options for a rich immersive surround sound experience.
Another option to allow for playback of Dolby Atmos file is the use of an enabled or certified device, like an Apple TV or Fire TV, connected directly by HDMI, or to your TV with eARC connection, to a processor like that found in our SP25 Prisma and SPA25 Prisma models, or any other surround processor or receiver with eARC capabilities.