class A upgrade

[plastic penguin]

You can have your cake and eat it!

I was most tempted by Atoll IN200 because it operates in class-A mode up to 40W before switching over to class AB—impressive engineering and if you have it on standby the components are suitably heated. Not many integrated amps out there do that.
My SingXer SA-1 head amp does the same, runs class A and at certain wattage, the circuits switch to AB.

In the end I settled for little brother IN100 second hand which was more palatable with my budget

Don't eat cake.

I was referring to pure Class A, not hybrid or the likes of Class G.