Looking for an upgrade for my Aune X1 pro DAC+Amp to pair with Focal Elear and HD650.
Eyeing on Audio GD NFB11.28. Is it good enough?

Notice that NFB-11.28 using same ES9028 pro with NFB-29.28/ NFB-28.28. Any significant difference between this 2 DAC/Amp? Noted that the price difference quite a lot.

Will prefer single ended since i didn't own any balance cables.

Any sifu here try Aune S6 before compare to Audio GD NFB-28 or NFB-29?