I do agree that inaudible distortion can have ill effects especially since it can create extra heat.I don't care about post counts or pictures (unless the pictures provide correlating data). Trust me on that one.
Again, I ask: when I say measurements, what do you think I'm talking about? In your post, again you've cited something specific to Thiele/Small parameters.
I think you are also misunderstanding my argument for assessing the performance of a subwoofer. Here is a really simple situation and a favourite of mine. Harmonic distortion is very easy to measure. It is something that is really physically happening. However, considerable harmonic distortion may go completely unnoticed by a human in that listening session. So is the ear still a reliable way to gauge what you have called accuracy? If we make the argument that unheard distortion is unimportant (which I completely disagree with), let's make another extrapolation: if one person can hear the distortion, and another can't, can we still say that the ear is reliable? The answer to both questions is a resounding no.
I have said this many times, and I'll say it many times again: if the goal is to get something that you like the sound of, then using your ear is fine (even 99% of the posters here are capable of understanding why they enjoy that sound). However, if we wish to make any objective comparisons of which product is more "accurate to the source", then an ear simply will not do and we must substitute it with something that is capable of qualitatively capturing the physical phenomenon created by the product in question.
My goal in my tests was to find the best driver for me and I did have hopes that the JL performed well. It didnt for me.
And yes, I understand that T/S parameters are not what your argument is all about.
I am also uncomfortable with how much of a bandwagon JL has because somebody's buddy has one and it slams in the trunk, and he can do 190 dB but doesnt go to comps because he will feel bad for taking everybody's trophies.
I have been surprised many times over the years when actually hearing a sub sound good when on paper it shouldnt have, or a sub that sounded bad when it should sound good.
