@shadorne
I do agree with you that -in general- very few speakers will comfortably go much higher than 95 dba, without running into higher distortion. The moment you can see the woofer "working hard" there is a very realistic chance that you are entering higher distortion levels as well. At 95 dba, almost all speakers will show this "working hard", they will have to move a certain volume of air to reach the higher sound pressure levels, so as woofers themselves have a certain mass, they will start to "overshoot (both positive and negative overshoots). This will create distortion. (easy to envision). Manufacturers will try solving this by selecting different materials, stronger magnets, tighter tolerances, adding more woofer units, or a combination go the above. In general this results in higher costs. As I like dynamics, and in general stay below 90 dba, my system is still quite within its "comfort zone". At least you don't see its 16 woofers working yet ;)