My bandpass box has the two 12" Pioneer subs, but the banpass box has two sealed/unported boxes inside it that the subs sit in. The only port in the box is in the rear of it, opposite the plexi-glass face. You can see the subs looking into the plexi-glass front, and cant see the magnets because they are inside the boxes inside the box... if that makes sense. There is sound dampening material inside the two inner boxes btw.
I found a pic online similar to mine: http://www.tulipstuff.com/images/man...s_JENBP210.jpg
The only difference is that there is a physical seperation of the two inner sub enclosures, and that seperation creates the port to the back of the box.
I can take a pic of it later today and show you if needed.