linknet
100+ Head-Fier
So here it is BroBro we cant't help you much if you don't give us some specifics. What is your dac/amp? Your phone?

My dac/amp is an Aune X1s GT and my phone a Xiaomi Redmi 9...
Everything is working fine except that the lowest volume in my dac/amp connected USB with my phone and with UAPP in bit perfect mode is already too high (i'm a low volume listener) with a sensitive headphone... And i can not lower the volume directly in my phone in bit perfect mode... As i wrote, and i will be happy if u show me i'm wrong, "the only way seems to quit bit perfect mode and to use the EQ with some negative gain..."