yea I figured as much, just thought I might see if there is any room for improvement .
Prefabs are no good. The idmax 12 is a great sub. One of my favorites. Get a custom made ported box for that and it should be really nice. Go for a 2.5 cu ft 30-32hz. Trust.I have a 10 in a ported box that I am selling, sounds good but I wanted to be able to have a little more air moving around, it is a p1 rf in their prefab ported box, single voice coil tho. I decided to splurge and go for the idmax 12 , been wanting one for a long time, just need more power.