Hello thegreatmike,
It would depend on the device being used and the destination device's capabilities. You can check out the following on AirPlay and audio: Use AirPlay to stream audio
With that said, if you're using lossless audio, then you'd need to see this instead: About lossless audio in Apple Music
About lossless audio in Apple Music
Our commitment to your listening experience
Apple Music delivers an unparalleled listening experience that’s defined by the highest standards of audio quality. We developed our own implementation of AAC (Advanced Audio Codec) that delivers audio that’s virtually indistinguishable from the original studio recording. We also introduced Apple Digital Masters to deliver the highest-quality recordings. And now, we’re offering Apple Music subscribers the additional option to access our entire catalog encoded using lossless audio compression at no extra cost.
What is lossless audio compression?
Most audio compression techniques lose some amount of data contained in the original source file. Lossless compression is a form of compression that preserves all of the original data.
Apple has developed its own lossless audio compression technology called Apple Lossless Audio Codec (ALAC). In addition to AAC, the entire Apple Music catalog is now also encoded using ALAC in resolutions ranging from 16-bit/44.1 kHz (CD Quality) up to 24-bit/192 kHz.
While the difference between AAC and lossless audio is virtually indistinguishable, we’re offering Apple Music subscribers the option to access music in lossless audio compression.
What you need to know about lossless in Apple Music
Streaming lossless audio over a cellular or Wi-Fi network consumes significantly more data. And downloading lossless audio uses significantly more space on your device. Higher resolutions use more data than lower ones.
- AirPods, AirPods Pro, AirPods Max, AirPods (3rd generation), and Beats wireless headphones use Apple AAC Bluetooth Codec to ensure excellent audio quality. However, Bluetooth connections aren't lossless.
- To get a lossless version of music that you already downloaded from Apple Music, just delete the music and redownload it from the Apple Music catalog.
Let us know if this helps out, take care.