Class A Power in A/B amplifiers?


Is there a general industry standard for the amount of Class A power in Class A/B amplifiers?For instance SimAudio has always touted that they run Class A for the first 5 watts.Curious how other higher end manufacturers approach this..
freediver
My Coda CSIB integrated gives you 3 power choices,I choose the lowest power.
my integrated 1st watts in pure class A says 18 watts ,it’s closer to 20 ,then 150,300, 600 wpc , and incredible 120 amps short term available for control ,and Huge potted 3kva  transformer ,
and pure class-A  preamplifier section  made in USA ,
I know of nothing under $10k that is even remotely close in  many areas ,a true High end bargain.stereo times was spot on in their review ,after buying it I could not agree more .
Some interesting insight.
@gs5556"There really is no such class as Class AB, it is used to describe the mode of operation when a Class A amp hits a low impedance and one of the pairs of output transistors stops conducting"..Would this mean that by keeping the load impedance stable & highish it would keep the amplifier operating in Class A longer?
Moot points; class D ihas already supassed these others. See my review of Legacy Audio i.V4 Ultra at Dagogo.com 

Imo, such conversations are remnants of a past era of amplification. 
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