I have a modded mojo 2500D on the way and I'm very interested in these subs. On paper they seem to be exactly what I want. If I get two the amp will be ran @ 0.5ohm with somewhere around 1700w per sub. I can only afford one for now so I will probably run it at 4 ohm. Could a single Havoc handle 3kw if I wired it at 1ohm?

On a side note, I see alot of vented boxes with the port at one end and the sub(s) at the other end. I usually place the port between the subs in a dual sub setup. Is there any gain from porting at the end of a box?

Only thing that you get from having the port at one end allows you to tune lower because you can increase the port length.

Thanks for the info.

There are different characteristics of the different port locations, but that is something I would rather leave the explanation up to someone more versed then I am.