What is the loudest sound you've ever heard? Please share your experience and your reaction to it. Mine was an exploding pyrotechnic pod on the stage with me during a show that was accidentally loaded way too hot. When it went off (right on que), it blew the exit sign above the stage door to pieces and knocked the speaker cable out of the subwoofer on the side of the stage. I went instantly deaf and needed new underwear. Glad it was the last note of the last song of the night.