I know the website recommends box specs at 2 cubes net tuned to 32. However, I think that the literature I received with the sub said 2.3 cubes net tuned at 30. I am sure that either will work. This will be my first ported box (don't worry, I am not building it myself) and I admittedly don't know any more than what I have read. Anyway, my question is, which way should I go with this -- 32 or 30? If it helps, I am more into sq than spl. (And would it even make that much of a difference?)