you realy have to calculate the enclosure parameters according to that particular sub.
for example one sub in a 2.0cuft box tuned to 35Hz may peak at +3db between 35Hz and 40Hz and have a very sharp down slope to an f3 of 27Hz to 30Hz, while the same sub in a 3.5cuft enclosure tune to 35Hz may still peak between 35Hz and 40Hz, or at a wider band, but it will do it at a higher db level, which may give you more bass between those peak frequency then the smaller enclosure, but may also reach the mechanical excursion of the sub at a lower power rating and a higher frequency then the smaller enclosure.
so the tuning freq is not the only important factor, the tuning has to be calculated in conjunction with the enclosure volume, to find the proper enclosure for that particular sub. there is more to it then that but you get the idea about tuning and enclosure volume.