I think if it has pcbs that can be an issue to ultimate longevity. Point to point wired amps will probably live forever as repairs are always much easier.
amplifier longevity
Is there any difference in longevity and or reliability between valve amps and solid state amps?
I thought that perhaps design differences between ss and tube amps might be a factor here.
Specifically I am considering the valve amps by Rogue Audio vs. the solid state amps by Luxman, both great brands in my opinion.
Thanks!