TIDAL is a subscription music streaming service that delivers lossless and high-resolution audio. For Hi-Fi owners it matters because many network streamers, DACs and players stream from it directly, so it often acts as the main source of a digital system.

John Makovsky

John Makovsky

John Makovsky
The service streams tracks in FLAC (Free Lossless Audio Codec), so files reach the DAC without data loss. Apps on phones and computers handle search and playlists, while many network players run the service in their own firmware. Roon can browse the TIDAL catalogue inside its own library, next to music files stored at home. Support differs between devices, so the spec sheet of a streamer shows which routes it offers.
On topic here is a side-by-side test of hi-res music services. It sets TIDAL against competitors on maximum resolution, catalogue size, metadata, Dolby Atmos content and playlist generation, and records the change in how its hi-res files are delivered. Several other items in this tag concern the Dutch loudspeaker and amplifier maker Tidal Audio, which shares only the name.
FLAC at 24-bit/192 kHz sets the upper limit of TIDAL playback, and high-resolution files now arrive in native form. Dolby Atmos tracks carry spatial mixes for multichannel setups and need an Atmos-capable processor or device. MQA, the folded format the service used before, is no longer supported. TIDAL Connect is the casting route built into many streamers, with the phone app acting as a remote.
Go to Streaming for network playback news and Hi-Res for high-resolution formats. The Roon tag covers the player software that integrates the service. Network streamers in the catalogue list which services each model supports.