Ah - the loud bang
Back in in the days when "multimedia" was the cool new kid, I worked for PC World. We had a consignment of monitors delivered set to 110V. Many customers called in with shaky voices from that episode.
We ended up cutting a hole in the side of the boxes and flipping them across without opening them, but we did test one to see how big a bang it made.
Big. That's accurate enough! :)