audiofan,
Given a certain enclosure size and ports, you can tune a sub a sub in different ways....deeper extension or higher output. If you tune a sub to hit lower frequencies, you give up output at the higher ones....and vice versa.
Ajax...nope...I do not know the rolloffs. I do believe the rolloffs are natural below the tuning point as opposed to boosted...although I am not sure.
I have a VTF-3 and leave it in max extension. I also got a used STF-2 for use down the road somewhere else....and other than not getting quite as low than the VTF-3....it gives up nothing in my room.
