Well for $15 I could not pass them up. I did a little research on them, and they have been known to be "amp killers" due to poor build quality on the woofers, which allows each woofer to stray away from the correct ohms. It can even get as bad from going from a 6 OHM speaker, to a 2 Ohm speaker.
Well I am not going to risk my system, but I did give them a quick play. I am going to say they are exactly worth $15. So I believe I did good. I am already thinking of doing some mods such as some better woofers from PE. I am even considering plugging up the port, and adding a 8" passive radiator with a 8" woofer, and see how that turns out.