Good Analogy Mojo.
This was a eureka moment for me that brought the concepts of “loud” (spl) vs “slam” (sound intensity) together for me. I dont always want to crank my system to feel that nice sensation. I wanted to understand why some people report their subjective impression of tactile bass at low volumes.
If my understanding is correct, the larger the perpendicular radiating surface is to the vector angle, the greater the w/m2 possible for a given frequency. This is because the larger the cone area trends lower frequencies to a directional radiation pattern vs distance. -Like beaming tactile energy rather than emitting as a spherical pattern. This doesnt affect sound as spl as we hear it, just impression of tactile effects.
Very cool stuff!
