According to a Amazon review
First these need to be fed with only the subwoofer signal
Second, if they are driven too hard (loud) they make a TERRIBLE sound. They need a separate level (volume) control to keep them in the “feel” range and not the louder “feel and hear” range.
So I don’t think they will work with headphones. As for the amp in the link, that looks like an amp for a car stereo.
What is your intended use for this set up ?