Sensitivity is a specification that can change depending on the way it is measured. Klipsch does inflate their sensitivity, but there is so much variance that can occur depending on measurement technique that I don't regard that as a huge deal. Most competently designed loudspeakers have enough dynamic range for most people who have common AVRs/amplifiers. If you want speakers for parties, karaoke, reference level home theater, or something like that, it becomes a more significant issue, but the speakers made for those applications are usually adequate for those tasks as well.