Coupling Capacitor upgrade? Which one first?

Second thought, since you have a non polarized 63v cap on the input of the amp, just bypass the one on the dac (direct couple it) there’s no need for it, at least you get rid of one "pita" cap.
But make sure you power up the dac first then the amp.
And turn off amp first (wait) then turn off the dac.

Cheers George

George actually I tried to change The dac output caps with wire. Not too much change. (just a feeling some thing removed :)
Because of this, I started to think amplifier input cap more important than dac output caps(>>>>).
But you guys more experienced than me probably. Maybe someone has similar experience or explanation..

Not too much change. (just a feeling some thing removed :)

Shows you the Wima's are pretty transparent, just leave them be.

Cheers George

I ordered New wimas from mouser, I will try them next week.Maybe my amp input wimas are fake ones. Maybe it makes a difference. 
What do you think which one is more important caps, amplifier input or dac output? 

What do you think which one is more important caps, amplifier input or dac output?

Just leave the amp ones in, and leave out the dac ones. But then only use that dac with that amp!

Cheers George