Jupiter Caps in tube preamp application


I just ordered some Jupiter Copper Foil caps for my Art Audio Vinyl Ref preamp but now i am thinking maybe that is a bad idea due to temperature issues? Jupiter says they are designed to work up to 80C which is high but was wondering what others think about this. Advice is appreciated.
jimbones
So true, with software today it is easy. So I don't make my own recordings so therefore I am a little behind in that area. I am an older audio guy from way back and I am tired of chasing. I got away from the hobby for 15 years and when I got back I promised I would go back in with my eyes open and just try to build a system that satisfied me and not worry about the latest equipment in the magazines. I am at peace with my system Lol!
Dear @jimbones : Accuracy can means several things depending on what we are judging and accuracy is only one part of an overall audio item design.

Accuracy with out a good item design is useless. Accuracy must comes along good design with good passive and active parts.

Example: accuracy is always welcomed in the inverse RIAA eq. phono stages but it does not matters if the design is a bad design.

Everything the same accuracy makes the difference for the better. Accuracy is always a measurable characteristic.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.


Whoever stated warmth is not in part of live music ,never heard  a  live event 
jazz , standup bass , bass guitar ,acoustic guitar woodwind instruments ,drums vocals ,piano, and a combination of all above , Jupiter Copper foil waxed paper are very natural and night and day better then the vast  majority of stock average  capacitors low quality like Solen , or China specials  in Loudspeakers.