Thanks for the info and I checked out the hd3, good looking sub. I've been out of the scene for several yrs so I don't know anything about audioque so from what I see looks like a good company. That hd3 seems like a monster and I know there are all types of loud, is that sub going to be freaking loud? Only reason I was wanting to go with one sub is so I don't have to add a lot of extra to make sure the voltage supply is there. So with that hd3 12" what amp would u recomend? Thanks again