Hey there, Max. Just made an account today after using Poweramp for over a year.
Thanks for all the awesomeness. But I'm here for another reason.
I'm currently using a OnePlus One. http://www.gsmarena.com/oneplus_one-6327.php
The OPO is running Sultan's CM13 ROM. http://forum.xda-developers.com/oneplus-one/orig-development/rom-kernel-unofficial-cyanogenmod-13-0-t3242700
I'm on the latest Poweramp alpha-701 and going into Audio Output, I can see the experimental high-res output setting. However, upon activating it for the headset, I get a failed popup. If I recall correctly, the OPO should natively support 24bit 96/192khz output thanks to using the same audio chip the LG G2 uses. If you have the time to help me on this, it'd be much appreciated. Thanks!