It's downward firing, and it sounds great. More clean and clear than tubthumping. I still like to hear bass in my songs, and this does just fine for me. Probox makes this box, I found it on ebay a couple of years ago. I also replaced the doors with Polk db's with an amp on them. You should check with our site sponsor Hatchbox, I'm sure they'll answer any questions you may have regarding enclosures. You can get to them by clicking sponsors on the left.
Hope this helps.