I didn't indeed react to that part in detail. I have been to an ENT and although he could see that subjectively I was sensitive to loud noises, there was nothing physiologically wrong and nothing that could be done from a medical point of view. I've been more sensitive than average for as long as I can remember, feeling the need for earplugs when others didn't, struggling with headphone listening, etc. I play instruments and have been in bands.
When I had my bout of needing to see an audiologist it was a sudden onset, and it went away in a few weeks.
So I suppose if the amps that were good in the past are still around it would be worthwhile to use them to see if they are still good, or whether the hearing is now sensitive.
As said, listening on a speaker system, I never had this issue before going to higher end models and my theory was that the higher precision and faster transients translate to a higher perceived air pressure.
It is sound pressure, not air pressure.
I doubt that the amps are any “faster”, as most amps play 20kHz just fine, and nothing is going to arrive faster from a 2kHz signal, than a 20kHz signal.
And if it is grating harmonics that spray into the upper frequencies then that could be cured with the amps that were mentioned as being good sounding.
But a fishbone diagram would include things like:
- distortion signature
- clipping affecting distortion signature
so we sort of need a way to ameliorate or exonerate the most probably causal mechanism (candidates).
Once we know the mechanism, then we can determine the best equipment to use to mitigate the mechanism.
(But I do not go straight to power cords, power conditioners, now cables as mitigation mechanisms… I like to take a more direct approach than a “buying festival” to play “pin the tail on the donkey”, where I am hoping to hit the solution by accident or chance.)