Originally posted by awalbert88 Here's a fun thing to do with your old subs: get a standard a/c extension cord, cut the end off to expose the wires, and run it to the + and - inputs on the sub. Make sure the wires are covered up (not touching and secure). Go to your garage (or someplace with a concrete floor - NO CARPET). Place the sub on the ground, and plug the cord into a wall outlet that is on a switch (VERY IMPORTANT). Make sure the switch is off before doing this, because you could possibly be electrocuted if something goes wrong. Stand back a bit and throw the switch. If your sub is a piece of crap, it will go "pop" right away. A tougher sub will bounce around for a bit. A really tough sub (like a Kicker L7, JL Audio W7, ID IDMAX, etc) might even bounce around for 10-15 minutes before the voice coils burn up. This is pretty much garuanteed to destroy any sub in the world. And if it doesn't destroy it, you might want to hold on to it, because it's the toughest **** sub ever built //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif.
Have fun!