There will be some improvement, but it depends on the quality of the songs you play. DAC is a converter that simply amplifies the audio information of the song itself, and this decoder is suitable for non-professional equipment to decode high-resolution lossless music. If your song itself is of good quality, then a DAC decoder must be useful. For reference only
DAC decoding chip does not improve the sound quality, it is only digital-to-analog conversion, the analog circuit after decoding chip has a certain impact on the music, but the improvement is not large.