It got quiet here. Hopefully Layman didn't blow up the largest electrolytic capacitor he could find at Radio Shack or wherever.
I did this once. At a party. A wedding no less. I had built a little practice amp by placing a power amp and power supply inside a cabinet that served as a baffle for a large subwoofer. I would play my bass guitar through a foot pedal which provided the preamp. I had used it for years without any problem.
Well, the design I chose used two ports on the front which were tubes. Right at the end of the bride's dance with her father we ended with a loud crescendo, so loud it shook the capacitors in the power supply loose from their mounts. A design flaw, in retrospect. And the revelers went wild as metallic ribbon shot out of the ports like a chaff dispenser. But then the acrid smell and with a burst of panic followed by an Civil Defense type call for orderly evacuation, the room quickly emptied.
Gee I hope Layman's OK. Folks, don't try this at home without safety glasses and a fire extinguisher. And please: check with billvon before you try to prove him wrong.