To make changes to the sound quality on your desktop TIDAL app, go to the more options icon (...) and click Settings, then select Streaming to manage your sound quality. Depending on your subscription type you will be able to select from two to four of the following options.

Normal - Reduced data usage for slower connections

High - Best compromise between data usage and sound quality

HiFi - Lossless CD quality

HiFi/Master - Authenticated files from the mastering process. Studio quality. Unrivaled clarity and depth