No, you actually prefer an amp that adds distortion, and your benchmark reduces clarity.
This is not true.
Our hearing evolved over millennia to interpret the fundamental frequency and even ordered harmonics as natural and clear sound. There is no natural sound in nature that is not accompanied by even ordered harmonics.
Not true as well. Piano does not have harmonics at all. It has overtones that are at different frequencies than harmonics. Clarinet has only odd order harmonics (acting like close tube resonator).
Pure sine wave doesn't have any harmonics, etc.
It is obvious that unique sound of (odd harmonics only) Clarinet will be altered when system adds even harmonics.
The 0.00011% THD is achieved by dialing in large amounts of NFB. NFB results in odd ordered harmonics
Not true. It results in odd harmonics (TIM distortions) only if NFB is recursive. AHB2 uses non-recursive feedback. Signal fed back does not come to the input section of the amplifier, but to completely different error amplifier, that runs in parallel.
Even in minute amounts, odd ordered harmonics sound unnatural, sterile and not musical. Odd ordered harmonics do not occur naturally.
This is wrong. Where you learning this ??? Almost all instruments (with few exceptions), produce series of even and odd harmonics.
Odd harmonics do not occur naturally ??? What about Clarinet that has only odd harmonics?