Would this be good for a box for a single SA-12D2?
2.02ft^3 31.63Hz F(3): 25.28Hz F(10): 21.28Hz Tops out at 4.356 @ 37.45Hz Comes back down to 0 @ 147 Max rear port air velocity is 26.846m/s @ 29.11Hz If you'd like for me to post the screenshots of WinISD, Torres, or SketchUp I will.
Edit-----------------------------
13.75Hx30Wx15.5D
Port: 12.25Hx2.5Wx35L
2.83 gross volume, 0.67 port volume, 15.16in^2 port area per 1ft^3, 30.53in^2 total