i was sent this sub when soundaround was out of stock of the pld15wd(pyle diver). it took a month and a half to recieve it which was yesterday. the very same day i got it i put it on my kenwood kac-1905d class d 1800 wt. its 500rms at 4 ohms. i played it correcty for 15 MINUTES at 4 ohm and could smell something i took the sub out of the box and it was smoking....i noticed that where the woofer met the magnet it was not sealed together. the cone came out of the magnet. this is my second system and i thought i was making a good decsion getting this sub obviously not. so for those of u looking for a cheap powerful sub DO NOT GET THIS!! for the guy who tried to tell everyone that pyle is garbage u were right.