This is a ported enclosure for the Tang Band W3-2108 micro-sub, which I use along with my Speaker Enclosure For Tang Band W3-881SJF for my desktop PC.
The rated 45 Hz low end is no joke! However, do note the low sensitivity rated at 77dB @ 1W/1m - mine is situated under a mostly enclosed corner desk, so I'm getting some reinforcement there.
You may wish to use lower layer heights for the first several layers, so the port fillet comes out smoother. I always recommend test printing just the front bit first to test fit the driver and bolts.
Fill with the desired amount of wool, poly. etc.