I decided to share and discuss the modification of my Aune S16.
I changed all tantalum and electrolytic capacitors. I changed and opamps with Burson V5.
I replace IEC connector with Furutech FI-06 and RCA connectors with WBT.
Result is very good.
Removing SMD ceramic caps used for decoupling is recipe for disaster especially when your ears are the instruments of use. What your ears think is better might be more distortion or jitter you are hearing. Without measuring and no oscilloscope you are making things not better. You don't really know what you are doing as you are driving without lights in the dark. Tuning by ear has had some following in analog circles but it does not work like that in digital electronics. The fact that Burson discrete opamps are used speaks for itself. These measure worse than most modern opamps....