BUT I KNOW THAT VAN MAANEN IS RIGHT about hearing theory and the way the ears process sound in relation to sound source.. this is why i read it...
I fully understand everything he has written and nothing there should remotely get you to believe what he is saying. He has offered no proof points other than one silly circuit which has no place whatsoever in a real amplifier. A contrived example is no proof of anything. You need to write him and ask him to give you that proof: that his knowledge of said "theory" has enabled him to build a more musical amplifier. Ask him how that was assessed. If he says it is to his ears and reviewers or customers, run, and run very fast because that is what every other audio designer will tell you.