Lifetime of Auricap capacitors ?

I have your answer, but cannot share based on the truth of how those other realities matter as much as your need for an answer. 

Check back in 20 years. Perhaps someone will have a personal experience to share. 

Otherwise, enjoy some nice music till then.

Well I know the answer but after reading your second paragraph I’ll not respond to your question directly. I will respond I don’t understand what the lifespan of a capacitor has anything to do with the other. Good luck.

Hey,

See the film capacitor calculator here:

https://www.illinoiscapacitor.com/tech-center/life-calculators.aspx

But so long as you keep them near ambient temperature, they should outlive us all.


Best,

Erik

If you think other things don't influence sound, why care about audiophile capacitors?

Because the stray inductances, non linearities and the esr values of capacitors in the SMALL signal paths DO affect the sound.
But those things in the power supply side
do NOT.

Quality plastic caps will outlast us both cakyol so long as they're not used too close to their max voltage, up to 70% is still fine

Cheers George  

Your system may not be resolving enough or your hearing can't or won't hear them.
Try this. It won't cost you anything. Warm up your gear. Listen to a good recording. Power down. Wrap a few turns of masking tape around the glass part of the power fuse in your preamp taking care not to touch the steel caps. Listen again.

Voltage and temperature may affect their useful life but that's nowhere near electrolytics. With -55 to +85 degrees they could last more of a life time unless you place them exactly next to a tube.
G