@andrewilley thanks for the reply. My Hi-Fi DAC is 32 bits and It has ES9028C2M + Sabre9602C chipset.
I experienced some weirdness when I'm doing what you recommended. When the volume is 97% or higher, there is no blowing effect in the sound, no matter what the value of the pre-amp gain. When I lower the volume to 96% or lower, the sound starts to blow immediately and I can only correct it with lowering the pre-amp to very low levels, and the volume of the sound becomes very low.
There is no such problem when I use my headphone jack.