How long does Class A have?


Hi Guys/Gals
 I have a Sugden A21SE which is a Pure Class A single ended design, I absolutely love this musical amplifier with its strangely plentiful 30wpc, it runs hots as they do, I always enjoy watching the faces of my uninitiated friends when they touch it after I mention they get hot, lol.
But in this modern green era I wonder just how long do Class A amplifiers have before Greta Thunberg gets wind of this inefficient method of creating sound and pisses on the parade?

Thoughts?
mrmeaner
Why don't manufacturers list the amount of amps (current) their amplifiers and receivers put out.  It is nothing to do with watts.  It all has to do about current.

I think they hide this number because they know their amplifiers do not produce much current.

Wonder why this group doesn't talk about this?
As my amps run on 230v I guess they draw 1/2 the current and 1/2 the power?
“The amplifier does not require any maintenance. While the design is conservative, this is a hard running amplifier, as single ended Class A operation is the least efficient operating mode. In fifteen years the electrolytic power supply capacitors will get old. Depending on usage, you will begin to have semiconductor and other failures between 10 and 50 years after date of manufacture. Later, the sun will cool to a white dwarf, and after that the universe will experience heat death.”

- Nelson Pass from my Aleph 1.2 manual
mrmeaner OP
How long does Class A have?

So long as people want the very best, it’ll last forever.
Nothing comes close to a Linear Solid State >100w Pure Class-A that can also do big current down into low impedances.
IE: keep close to doubling wattage for each halving of impedance down to 2ohms

Cheers George