Quote Originally Posted by Tetsuro
I don't find that article helpful at all... I mean, I have attached mine two amplifiers simulaneously and them DO sound DIFFERENT from each other, really different. One sounded warm and the other sounded cleaner, brighter but a bit colder.

So there are real differences between amplifiers.
Sorry, if the best audio people on the planet couldn't tell the difference, it is doubtful that you can.

I'm not going to argue with you, buy whatever you want.