True, but I think to some extent, distortion too but It has to be very subtle. To me, not as much because there is more distortion, but more about the fact that it is gradually, slowly, and linearly increasing THD. It’s just a very unfounded hypothesis, but would it be possible that it could artificially create an exaggerated sense of dynamics that is not on the recording? like when you hit a snare drum hard, there are more and more harmonics the louder you hit. This of course is on the recording, but with tubes, loud transients will have momentary more THD than soft segments, it’s not going from perfect to clipped, the THD will constantly move with the dynamics. that’s how tubes behave. In other words, the harmonic content is modulated by the signal. Of course, it’s still artifacts, still not hifi reproduction, but wondering if psychologically, this smooth raise in harmonics as. stuff gets loud may contribute to this idea of tube sound.