Micromega DUO DAC TDA1541a sell? mod?


I have this 20 years old DAC, and it was wonderfully musical at the time.

Compared to the new DACs, it lacks detail big time. I learned that the old TDA1541a chip isn't bad at all, so the performance might be limited by the presence of Jitter? Not sure either.

I am not sure if it's worth the time+$ to mod it? or should I sell it for dirt?

It has a volume control so it's quite useful.

Any suggestions?
kschiu