"dave weil" wrote

Please consider the whole system. You got speakers
with frequency response starting at DC or a 1 Hz?

You got speakers with a FR that includes 6hz?

It's interesting to note that some of the subwoofer
manufacture are designing down to this low level
like: Bag End 8 Hz, Definitive Tech. 11 Hz, Linn 2 Hz,
Paragon 11 Hz, Thiel 10 Hz, California Audio 9 Hz
and Audio Physic 10 Hz.

Also there are physical traducers that attach to
chairs/couches which take advantage of DVD's
synthetically produced low level sound effects
which have nothing to do with music but does/can
represent naturally occurring sounds of the
environment like earth quakes.

I'm also doubtful that only the ear can
hear/interpolate sound waves. Sight, as we
know it, can be demonstrated to occur
without the aid of the eye.