There are several factors, the bigger the UF- and higher voltage take longer
In truth the 250v is pretty big for the vast majority of Loudspeakers
The CMR- caps are s naturally bigger cap then the Csa- caps 300hours + for the
Cmr- caps, 200 hours for the 250v Csa- caps, the 400v st least another 50.
Referring yo the Mundorf Silver oil the are a paper coated with oil and the silver
Particles impregnated on it ,not a paper in oil like Jensen.
It is a great cap for the tweeter as well as mids. Your drivers will dictate
Which have better characteristics . Mundorf Supreme as good maybe a bit more
Depth then the Clarity CSA. That being said I took a .22uf Mundorf Silver oil for bypass caps
And I though it was more s bit open the the Cmr on top, s bit more air around instruments A great combo.22 I like better then .1 ,these are big caps for a bypass caps though .I bought a bunch at dealers cost and making use of them.