Best sounding CD ever? Best sounding recordings? Best HiFi albums for audiophiles? Best hi-res albums?

[Torben_Rick (Torben - A Dane living in Hamburg - Roon Lifer)]

Hi Hans

I think you intended to post in this tread:

IEM - ? - iPhone or computer - Roon

NO They are for connecting wired headphones to a Bluetooth connection. Like this: [P1] This will not work [B2]

By the way: What would be a serious USB DAC in your opinion?