Re: Flown Subs, Ground Bounce, and People in 1/2 space
As Phil L. just pointed out, raising the subs off the ground would cause the cancellation to be above the subs, not in front or behind. This cancellation does not affect any normal seating areas. I have done outdoor tests, raising a sub 1, 2, and 4 feet above the ground. At 10 meters in front of the sub position, the level differences were virtually nothing.
Large arrays of subs increase directivity, the proximity to the ground plane becomes less of a percentage of overall forward gain as the frontal area increases in size.
There is a rather large difference in the hemispherical radiation pattern of a single small LF source on the ground, the omnispherical radiation it has when flown a wavelength (or so) away from any surrounding surface, and the radiation pattern of a 10 meter long flown array, or a 3 x 3 meter ground stack.
Floor bounce from a large sub array is not a single vector angle, and is frequency dependent.
