Same fs as a 15" BL //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
They're good sounding subs, not meant to be loud but to provide deep bass in small packages. Can't beat them for the price they're at right now, I'm actually tempted just to buy some for the hell of it. You definitely will not need much power for one...I'd get two, do a 1ft^3 box tuned to 30hz and see what happens. All you need is a circular saw and a straight-edge to clamp down as a guide for your cut. I assume you have some sort of drill to use.