I don't think it will play up that high flat. It does have a decent inductance due to the two sets of coils. It's pretty much good for about 70 Hz and down. But the down part is the impressive part as it will play frequencies that will make other subs cry.
First of all the designers of that sub are far from idiots. They thought the design through very thoroughly, enough to not use a 1" MDF sheet for the cone. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif Instead they used a 1/4" thick piece of aerospace composite that was very expensive. For those who have held it, they know it is very light but very strong.
Steven Kephart
Adire Audio