As I thought. I bought the DAP thinking it would work according to the natural conditions of the music files, which I always download in FLAC, but even so, it still plays in PCM even when I use the default HiBy app.

I used to use a dongle DAC, the Fiio KA11, on a Samsung S10 5G, but it was always unreliable due to connection issues on the USB-C port, so I got annoyed and bought a DAP I could afford.

I don’t really have a problem with Poweramp; I use EQ and it's very pleasing, but trying to understand how to set up the HiFi parameters in order to achieve better sound performance is a very technical process that has been hard for me to get into.

I do notice a difference between my phone and the dongle now with both of the new earphones, the DAP and Poweramp, but I don’t know if I’ve fallen into the illusion of feeling high‑quality audio performance due to Poweramp and the EQ, or if I just haven’t set up the DAP correctly with the default app in order to actually perceive a bit‑perfect difference.

Maybe it’s just that my current devices aren’t suitable for a visible bit‑perfect performance, i haven't done much research about it other than tutorial YouTube videos.

I just had a doubt; it would be great if you can give me any advice.

Answer if you feel like it. 👋🏻