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Lifespan of amps and preamps?

Hello.  I have been listening to the same NAD 1240, Adcom GFA 535, and B&W dm 620s since I was 20 in 1990 (it was a big deal to buy all that as a 20 year old kid...).  Other than doing a thorough cleaning on the adcom a few years back when it stopped working, I have literally done nothing to these components. 

Are they totally dated, meaning past their intended lifespan from an internal component perspective?  I have to say it all still sounds really good to me.  But I never really listen to other systems.
Thank you for any input!
Scott.
cruxarche

Showing 1 response by chorus

chorus
976 posts
 
It sounds to me as though you want a green light to spend money
again after your last investment 30 years back. 

If you follow these forums you must know you either care more about
money than SQ or you are just F-ing with us.

Fess up!!
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