it certainly is not black and white. All XX" drivers are not the same, or even designed for the same purpose.I definitely wouldn't have used the word "stupid". This said, reread your own words. The number of people burned at the stake by the Catholic Church for daring to say the Earth is flat is exactly zero.
This is exactly what the MDP usually replies with when room problems and interactions with FOH are mentioned. I suppose it's a BFM heritage. And I have difficulties buying it. I promise I'll reread the sticky threads, but I don't think I've ever seen actual science, not just ipse dixits, supporting the claim that phase anomalies generated by cabinet mismatch are of a greater order of magnitude than other contingent sources of peaks and nulls. And @ThisBass got showered with links and ridicule for actually raising a good point in one of his earlier posts: for people who actually have PA support, even someone else's floor monitor with some bass in it creates potential problems. For all the good that raising awareness on the perils of mismixing does, it would be reasonable to admit that in such situations it's just one possible source of problems among many.
And since it takes nothing to be quickly judged as a flat-Earther, and arguments aren't always weighed for themselves but filtered through the general impression of which side a poster appears to be on in a discussion, at this point I feel the need to say I don't mix myself and find the idea of looking for good sound by randomly throwing together different cabs tortuous at best.
Also (and I think we might have had the same conversation in the past), as someone way more knowledgeable than both of us once pointed out, too much of a relatively good thing can actually be simply too much: the upper bass bump from a matching stack may well sound too bloated in comparison with the same peak from just one of them, also considering that the baffle step moves down to the same freq area with the stack.
Also also, matching is well and good, but telling a guy to get a second 410 identical to the one he has because he'll get just more of what he loves is not the whole picture. With four more sources comes more comb filtering in many listening positions.
Size means nothing.
Some people still claim that "bass frequency needs XX amount of feet to develop" when i hear bass just fine with headphones, now of course that includes direct transfer of the vibrations to my body physically.
the Science is out there, but science cannot prove or disprove anything. Belief in science, often takes less "blind faith", and science is often theory, (AKA an educated guess) as with all things there is seldom an absolute. Personal experience is valid, and applicable but as is often the case, perception is no more fact than theory, it is a single persons theory. In the absence of contravening evidence their personal experience is their only reality. Reality itself is a debatable thing
perception: is like this.
The Blind Men and the Elephant
very real for the perceiver, but quite askew from the shared reality of the many.