DAC ZD3 and OP Amp swap

[delaforetnoire]

As you know, ZD3 allows OP Amp swap to improve, or change, the sound.

I open this track to share your experiences here.

●● In wich technical way, OP Amp in a DAC can color the sound?

☆☆☆ Lets try, listen and share ! ☆☆☆