makes for a dull or soft sounding amp.
I think this paper also implies that high order harmonics must
be smoothly decreasing, because the equation dictates a fourier
series that is monotonic as well as terms that smoothly decrease
in amplitude with increasing harmonic number.
I'd be interested in your thoughts on this. Should high order
harmonics be simply eliminated or should they follow a prescribed
decay pattern. It seems like two philosophies emerge toward getting
a good sounding amp. One that is 0% distortion, the other that is
get a distortion pattern to follow a prescribed pattern (same as
non-linearity of the ear???). Maybe combos of the two are best?