EL1 is exactly right. The O line from ED will not work well in a ported enclosure. If you look at the TS specs, most specifically it's Q the O series is higher then both the K and A series. I forget the exact ranges which indicate if a driver should be ported or not but I'll look them up and post back.
400 watts from an amp like the avionixx 400.2 would be great for this sub however it can handle more power and 600rms would not phase it whatsoever as long as it's a properly designed enclosure and more on the smaller side of 1.2~1.5 cubes. If you do use a larger sealed enclosure such as 1.5~2.0 cubes then 400rms will be enough for the sub to easily reach it's xmax.