"The bass quality and depth from the 15" Klipsch driver was spectacular, and the dynamics made everything other speaker at the show sound flat and compressed. This is where 102 dB/meter/watt efficiency really shows the difference, just as Paul W Klipsch said for so many decades. He was right;
if you want dynamics, you're not going to find it in 300-watt amplifiers and 87 dB/meter/watt speakers. Sorry, it's just not happening. (There isn't mysticism: there are good technical reasons for this, starting with low IM distortion and absence of voice-coil heating, which compresses dynamics.)"
https://positive-feedback.com/show-r...w-impressions/