I don't think you can actually hear the fundamental of the lowest note. It's lowest note has a 16hz fundamental, and people can usually only hear down to around 60hz.
Near where I grew up there are these caves on a cliff side on the ocean. At the right time of day, the tide is such that the water rushes in and creates these amazing subsonic booms. You can't hear them, but if you go down one of the walkways into the side of a cave, you can feel it. It's crazy. Probably a similar thing.