Are you saying that Spotify streams at 24/192? Back when I tried it, it was very limited. I don't remember exactly what it was, but I do know that I stuck with MOG, which had the best sound quality for me. MOG streams at 320kbps, which is high for a streaming service, or so I thought.
Unless I'm wrong, your question is moot.
I was, however, able to stream 24/192 files to my Squeezebox from my server. The mod does work, but be aware that it also changes the characteristics of the music. These "mods" do alter the stock configuration of interrupt priorities for a lot of the processes being handled by the Squeezebox while it's playing music.
Try it and see if you like it. If you have either a bunch of 24/192 files that you want to play or you want to be able to use the USB connection, then the mod may be just what you're looking for.