Anyone familiar with this sub? A friend of mine bought one cheap and wants me to help him build a box. A google search isn't coming up with much on this driver. I was wondering what the best suited box for this would be. It looks like it is fairly well made, but looks aren't everything. It has a very large surround and a 160 oz magnet with some sort of metal cone. It has dual 4ohm coils but not sure of their size.