These are indeed a great deal. The drivers are all fountek drivers of excellent quality. They aren't very efficient, but you can't totally compare that to readily available speakers, as the efficiency is somewhat of a more honest spec. Still, its not an efficient speaker and that will limit it's use somewhat. The speaker simply will not play as loud as more sensitive or efficient designs can. These would work great in a smaller system, just don't expect them to reach realistic levels. I'd also avoid pairing them with low wattage amps.