Blind tests show that almost no one can hear the difference between 320 kbps and CD. There are several tests on the Web to try it blind yourself. However, as has been stated there are high-def options. I use Amazon Music HD through Alexa, making my system completely voice-controlled. I can turn on the whole system with one command using an Amazon Smart Plug, and play any song or album with one additional command. I also stream wirelessly from my laptop using MusicBee. Both go through a Play-Fi device (Paradigm PW Link) using DTS Play-Fi, which is rated 24-bit/192kHz. Although it is a preamp, the PW Link does have a digital out, so I suppose that can go to your own DAC, but I know some people have concerns about pre-processing. I couldn't tell you if the PW Link acts as a pure digital pass-through. There are other Play-Fi devices, and companies like McIntosh, Martin Logan, Anthem, Klipsch, Onkyo, Polk, DT, Quad and many others have built-in Play-Fi in some of their devices, so it's not a niche technology.
If you should go this route, to remove a point of failure name your Play-Fi device one of Play-Fi's predefined names.
If you should go this route, to remove a point of failure name your Play-Fi device one of Play-Fi's predefined names.