I guess the point I was trying to make above is that for those who need some sort of empirical evidence to justify their purchase, a tube amplifier isn't for them. I believe the reason being we do not yet know how to correlate a test to the phenomena of music.
Those who take measurements and make declarations based on them regardless of what is in front of them need to be assess what the definition of a scientist or engineer actually is. As an example, if everyone can see that grass is green with the eyes that God gave them, but it measures "pink" using a sacred colorimeter, who is right, those who feel the grass is green or pink?
The resurgence of tubes over the past generation (against all odds and their disadantages in terms of cost, weight, heat, efficiency, maintenance, lack of supply of good tubes, as well as "scientific evidence") can be explained by not much more than there are those willing to trust themselves over what we are consistently told we hear or do not hear.
Bottom line, I don't listen to square waves (or anything else of that ilk), I listen to music. And, because that is what I care about, I listen to music through tube amplifiers.
Those who take measurements and make declarations based on them regardless of what is in front of them need to be assess what the definition of a scientist or engineer actually is. As an example, if everyone can see that grass is green with the eyes that God gave them, but it measures "pink" using a sacred colorimeter, who is right, those who feel the grass is green or pink?
The resurgence of tubes over the past generation (against all odds and their disadantages in terms of cost, weight, heat, efficiency, maintenance, lack of supply of good tubes, as well as "scientific evidence") can be explained by not much more than there are those willing to trust themselves over what we are consistently told we hear or do not hear.
Bottom line, I don't listen to square waves (or anything else of that ilk), I listen to music. And, because that is what I care about, I listen to music through tube amplifiers.