I have a lanzar opti1532d sub and would like to design and build an enclosure for it. I have decided to go with a sealed enclosure. The only problem is, this is a 15" sub with an extremely large basket and magnet structure and I'm not quite sure what the volume of the actual driver is. The specs states the enclosure volume should be 1.5 ft^3. Does anyone have any experience with this particular sub? Any advice, whether it's pertinent to Lanzar or not, would be greatly appreciated.....

If you would like to see what this thing looks like, visit lanzar.com and search the opti1532d....