Experiments with $100,000+ Speakers

You should try playing with a slot loaded subwoofer, and take a look a car audio systems. I built one about 30 years ago that could bounce a quarter three feet up when the bass hit. Some of them are loud enough that people have literally died from exposure to them. The victims suffered injuries they did not even know were happening. Cause of death is spontaneous pneumothorax & complications.  
The pneumothorax can occur up to 36 hours after exposure. Being young, thin, and male increases the risk, as does smoking. This is not common, but if you have trouble breathing after loud low frequency noise exposure, get it checked, esp if meds like Albuterol do not seem to work.