1. Moto Z (XT1650-03)
2. Stock Android 8.0.0 OTA
3. DAC is Motorola XMCS1000 and High-Res support has been confirmed by Motorola on Moto Forums:
https://forums.lenovo.com/t5/Moto-Z/Audio-specs-on-the-moto-Z/td-p/3425099
Some owners have also confirmed High-Res 192/24 is supported on Moto Z using the on-board DAC USB Audio Player Pro app, available via Play Store:
https://www.head-fi.org/threads/introduction-first-post-semi-review-of-sony-mdr1-updated-trashed-p7s-saved-now-out-do-sony-transaudio-206-vintage-monitors-in-possession.874614/#post-14103723
I'm using v3 but only have options for HD audio via USB DAC or Bluetooth with no wired headphone option showing in Poweramp UI.
Thanks!