vas-tomsk
100+ Head-Fier
I remind you that I observe this problem when I use the player as a digital signal source for another DAC (SMSL A6) with which the player is connected using a USB cable.That's a really odd issue, need to test and see if it happens to me too, if yes, then it may be a bug that FiiO can address with a future update. Odd thing I haven't noticed it, since I did adjust the volume on M3 PRO, and used it as a USB DAC