PeterCapo wrote:Interesting article, but too skeptical for me.
Well, perhaps. But, let's jump to basic physics, ignoring audio for just a moment.
a) Sound is vibrating air (or water or any other semi-solid medium (something with mass).
b) Making air move takes energy. And the amount of energy required is directly proportional to the amount of air to be moved, and to what extent.
c) Lower frequencies require more energy and a larger vibrating surface to create.
d) The Saint-Saens Organ Symphony is a perfect example and test case.
So, moving the equivalent amount of air as a 30' bombard pipe at natural levels will take some amount of energy,
So, moving the equivalent amount of air as the rest of the orchestra in the mix of frequencies required at natural levels will take some amount of energy.
The amount of air any given speaker is able to vibrate will be a function of area and excursion. How large is the surface area, and how much can it move, and how fast can it be moved in a controlled manner.
So, the actual performance of any given speaker is a function of the size of the vibrating area, the amount of energy applied to it, and, thereby, how much air it will vibrate.
Yes, I am skeptical of SET devices, FFSD horn speakers, and the cults built around such. The physics simply does not make sense.