It is a beast of a little sub n it is a good price for the size and takes a little more power to push than what it says it will take. I have hooked it up to my house amp that is 4ohm n it is almost a 2000 watt amp n I had it turned up about half way n it barely moved n yes I did break it in then I put some power to it in free air and it took it without it massing up