The guys here on this side of the forum build subs. You may want to ask in the Subwoofer section. My opinion on it is, well, I don't really have that much of an opinion on it. I personally haven't seen that before, and from the looks of it from their product page, it's possibly a 10" sub that's not powered, even though it says active, the frequency response is ok for a sealed 10" sub, but that's manufacturer quoted so who knows if it's accurate. Power handling is pretty low. Just based on what's on it's website, I probably wouldn't pay over 100$ for it. You can do better than that I think. I could be completely wrong about it, but from their specs I don't think I am.