I have a 10 in runnin off 180 watts and it is loving it in a .8ft^3 ported box. Man it sounds so good to. they sound best in a ported enclosure. Just call up re and ask them.
I don't believe they are optimized for either sealed or ported (a quick check of the T/S specs would reveal this) but I do believe with that little power, a ported setup would make more sense to maximize output.