Hi Grannyring,
Thank you for advice. You are single person on Audiogon who answered my questions.
Sorry. My English is not perfect. But I'm a new comer in Canada and English is my 4th language. Audio is my hobby during last 20 years. Jupiter capacitors in my phonostage are continuing to break in.
The sound is still changing. It was a little bit thin. After that, it was too lush. Now it becoming slowly more neutral.
When it settle done, I will decide if I need to add bypass capacitors or Jupiters without bypass are good enough.
In any case I afraid to bypass 0.1uF capacitor (because it is before RIAA correction) and results can be unpredictable. If I need, I will bypass 1uF output capacitor.