Here’s a thought: different bit perfect applications can add different levels of jitter to a bit perfect data stream. What is your DAC? Perhaps it’s susceptible to jitter?
@mdalton Your assumption does not make sense to me. If everything else is equal and properly controlled (fixed volume no crossfade, etc., as mentioned before), is the Volumio app bit-perfect? Yes. Is QC bit-perfect? Yes. When comparing sound quality between the native app and QC, the downstream DAC remains the same. I don’t get what you are trying to say.
I have micro DAC and D90 III Discrete. Both pair very well with Rivo+ and Veritas cables, sound smooth, pin-point articulated with wide, tall and deep SS. But with T8 is noticeably different story.

