I plugged my subwoofers into the wall socket to blow them.
Subwoofer 1:
http://www.youtube.com/watch?v=F-9uxP8UgVY
Subwoofer 2:
http://www.youtube.com/watch?v=4xCDZHwUNng


I had two 10 inch subs that were about to go out of the stores plan, and I wanted new ones because I didn't think they sounded as nice as before. The store didn't agree with me, and said they would only give me new ones if they were blown.

When I took the subs out of the sealed box, the box was filled with smoke. It had a weird smell like burnt rubber, static, and burnt metal.


The cone was stiff, you couldn't push it in at all, unlike working speakers.