I have one of these hooked up to a boss 1500 W monoblock amp at 2 ohms and it blows my last two subs out of the park. My sister says she can hear me from a block away. She thought I was in the driveway. I broke this sub in for about 3 days before turning my amp up and I recommend this for all subs because it really helps. Its not a myth. I give it four stars because I ordered two and haven’t received the second one as of one week now. I can only imagine how loud its gonna be with 2.