20 Year Old Amplifiers compared to 2017

Great example is FM Acoustics from early 80-s. Why are these so highly demanded despite the age and mighty price tag? There`s got to be a reason :))

I have a huge respect for Nelson Pass. I have owned many of his amps and still own X250.5. I`ve also had Aleph 0 but don`t recall such statement in the manual.

Generally I agree with his statement but if the amp is worth it will be serviced after 20 years or so and the caps and other small things will be replaced.
I´ve owned a lots of amps some brand new some 40+ years. For a well designed amp with quality parts 20 years is nothing.

I also read the thread briefly but I can`t recall anyone who`s in "all amps sounds the same" school?

Merry Christmas!

OK sorry I missed that.
I`ve heard of such "scientific" blind tests before and don't care to read their reports because I`m 101% confident that I hear clear differences between different amps, preamps, sources etc.

They probably used some muffled speakers and veiled preamp in their blind test so the results LOL :))