



Amazon, which often targets older consumers and families, has not disclosed its subscriber figures. The move by Amazon could put pressure on the other major services to adapt. Qobuz, a European service that arrived in the United States this year, charges $25 for a plan that includes streaming of files up to 24 bit and 192 kHz in August, Qobuz said it had signed up 25,000 customers in the United States. For $20 a month, Deezer HiFi offers tracks at the equivalent of CD quality, and Tidal has what it calls “master-quality” tracks using the MQA format. Several smaller services do offer high-fidelity audio, of various kinds. Spotify and Apple, the two biggest players - with 232 million and 56 million users each month, respectively - offer no high-resolution tiers. For the biggest digital music services, high-resolution audio has largely been an afterthought until now.
