im gonna build a box for my re SE 15" sub. i have two and i am planning on doing 2 separate enclosures....im thinking around 4.9 f^3...66 sq in of port..tuned to 32HZ....i have 2 questions...would you do 2 separate boxes...or one common chamber...for sake of making 2 EXACT boxes...#2...how do the numbers above sound per sub? thanks in advanced