I have owned a lot of 12" subs and a few sets of 15" but none of them compare to these killers. I am running them on a volfenhag 8400 2 ch. amp that claims to be 2000watts. I have tested it with a meter and am getting about 300watts per sub. Now, these subs will handle 2000watts each and they hurt my ears at 300??? I cant wait to get mo-power and unleash that gorilla in the trunk. Good, durable, DEEP, and hit HARD. Worth every penny.