At ILT the other weekend, we were enjoying a tune right in front of a set of speakers inbetween all the arenas.

At one point there was a break in the tune and the bass held on one note that you could feel resonating right inside your chest... then the frequency slowly dropped and you could feel it move right down your torso until (and I swear this happened) it shook my balls. :D

If it had went any lower I'd have shit myself.