zipost
this will be in the signal coupling cap 1uf 630v.
You say it’s a coupling cap in the signal path, not a de-coupling cap.
You should only use one quality cap as a coupling cap.
No bypass caps, as you will smear the sound because of the different behaviour of each cap at the overlap point (frequency).
It’s fine and encouraged to bypass de-coupling caps with smaller ones.
Cheers George