Qobuz CD quality music sounds very good. I cannot say if it's because of the higher bit rate or because they use better masters*
Primephonic has Hi Res Western Classical Music.
These are my impressions on bluetooth. I do not have the cable. I have come across a couple of accounts from people who used the cable and a DAC. They say that the DAC+cable sounds better then bluetooth, but the cable on it's own without DAC is not really distinguishable from bluetooth.
* - Probably better masters. I ripped a couple of CDs to ALAC into iTunes. These are songs that are not available on Apple Music or the iTunes store. They sounded extremely good via bluetooth on my PC. Much better than Apple Music AAC songs. I then listened to them on my iPhone via bluetooth. They were added to my Apple music library via iTunes Match. It is my understanding that iTunes match uploads the ALAC and converts them to AAC and them streams them to the iOS devices (they were not replaced with Apple AAC files since those songs do not exist in their catalogue anyway).
The AAC versions of those songs from my phone sounded identical to my ears to the ALAC in iTunes on my PC. Which leads me to conclude that it is the better quality mastering that made them sound so good rather than the bit rate itself.
