Deezer allows different audio qualities based on subscription tier:
Most people don't realize that deemix defaults to lower bitrates unless it’s "authenticated" with a Premium or HiFi token. Once you drop in a valid deemix arl hifi
: Supports downloading tracks in FLAC format (1411 kbps), providing CD-quality audio. deemix arl hifi
Once your ARL is active, you must ensure Deemix knows you want FLAC quality. deemix arl hifi