So I’ve tried playing hi-res (ALAC) files on Amp and Move after the S2 upgrade. Using the new Sonos app, Files up to 24/48 play back fine. 24/96 and 24/192 bizarrely play back in super-slow-mo; sounds like manually turning an LP very slowly. Under S1, the Sonos app just wouldn’t play these files at all.
Hi-res still plays back fine using Roon, but everything is still being downsampled to 16/48. Makes me wonder if the hardware actually supports 24-bit or if Sonos if just truncating the lower 8 bits when using the native app.
Anyway, was hoping for native hi-res support but I’m happy that Roon continues to function as before at the very least. I would like to know what Sonos actually does with 24-bit files and what the hardware is actually capable of supporting.