Well, I have built my Sub-1500 boxes and are almost ready to try them out.

The inside dimensions are 23" H x 17" W x 15" D
total internal volume (allowing for the cone and bracing) is 3.04 cubic ft.
Two questions:

1) How much fill should be used inside each sealed enclosure (I have the Dacron wool from PE called Acoustastuff)?

2) I read about breaking them in. What is the best procedure to properly break them in?

I am driving them with a Mackie M2600 at 800W per channel. crossing over at 90HZ with a 24db per octave filter in the Amplifier.

Thanks
JCD