Hi @maxmp
That's interesting that Poweramp is the first (that I know) support Turbo Hifi for X3. I can see the difference when switching between HiFi Mode.(In Build 703).
1. So the maximum of resolution is 24/48 and 16/192 currently and this is limited by Lenovo. Can you suggest anything to Lenovo's engineer or maybe you can help to improve it?
2. Currently, we have stock Music app (Chinese version), Poweramp and...TTPod can support Turbo Hifi. These apps can play Hi-Res file also but I don't know if this have to downsample or not.
3. The Tips for using Turbo HiFi is same as "Dac Fix for LG V10". We can play a blank audio file by stock Music player(or TTPod) and in the same time play music with Neutron, Sony Walkman...and we can see the difference when switching HiFi Mode. and of course we can not know if the signal go to DAC is Hi-Res.
I already purchased Poweramp for such thing you did in Build 703. Thank you.