focker39,
I would not worry about the rated power and look at total DB output if using in a home theater application. For music who cares as you will not be at the limit.
I would guess you are seeing the difference between the efficiency of sealed vs passive radiator. The sealed box of the JL will require more power. Also keep in mind going from 800 watts to 1600 watts is only worth 3db and when not driven at the limit will not matter.
I would not worry about the rated power and look at total DB output if using in a home theater application. For music who cares as you will not be at the limit.
I would guess you are seeing the difference between the efficiency of sealed vs passive radiator. The sealed box of the JL will require more power. Also keep in mind going from 800 watts to 1600 watts is only worth 3db and when not driven at the limit will not matter.