Helmholtz resonators aren’t something you can just add to a room willy billy, they are very hard to get right even with proper measurements.
FIRST, i never "add willy,billy" it is a process in the course of many weeks of listenings and adjusting volumes and neck...
SECOND Throwing the baby with the bath waters is not a very good idea, nor a valid argument...
What are the polluted waters?
It is the fact which is right that my tuning of my 21 Helmholtz tubes and pipes cannot be "mathematically perfect" and corresponding perfectly to the geometry, topology and content of the room, being set by my ears...
But the tubes and pipes are set also to correspond to the specific structure of my ears by feed back successive refinements....This is an advantage that compensate the imperfect mathematical tuning of the Helmholtz tubes and pipes by ears and listenings experiments instead of a complex processed mathematical tuning only with the room parameters and some tested frequencies corresponding to a very precise location each time only...
This is one thing....But what is the baby?
The HUGE improvement, in imaging, soundstage, and timbre perception, in spite of the absence of perfection, is the BABY.... why do you recommend me to throw it with the waters? I will replace it with what ? An equalizer?
Read about the limit of electronic equalization, about the cost of a good equalizer, and after that think again and put in your pipe the important fact that my homemade Helmholtz tubes and pipes COST ME NOTHING.... They are made with discarded tubes, pipes, or straws of various volumes and diameters...
Add to this fact that Helmholtz tubes can correct bass in the room on a level which equalization cannot do because equalization work on the gear electronics not directly on the room pressures zones....
Then when you put an argument think about the premises you will use...
«Your result is imperfect, only perfection is aceptable, then your result are bulshitt....»
Guess what is wrong with your reasoning any logician could call a "sophism" ?
Your relative mathematical perfection in relation simultaneously to some specfic ears and to some specific room dont exist to begins with, then it is stupid to reject my relatively imperfect reasult on this basis....
Then, try to think with all factors in balance and without vicious circle....
Thinking like walking or tuning a room is something we must learn...Opinions dont replace thinking except in the "sunday skeptic boy club" and many others clubs....
I figure myself in no club....