How long does Class A have?

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

All Class A/B amps operate in Class A for at least a few watts. For many speakers this is enough for average listening levels!