I'm honored to be asked for my thoughts, especially from the master artisan and craftsman himself and the very knowledgeable Jafant, but I'm afraid the tech eludes me and I know nothing other than what I hear and feel. It explains why I'm still running them on an underpowered integrated. I knew I had to get my 2.2s when I got chills listening to exerpts of each of 3 pieces of music I knew very well, 1 rock, 1 classical, 1 jazz. Same for the 3.5's. The music made not just an artistic impression, but a much rarer visceral emotional one also through the Thiels. The music spoke to my soul, which is what Jim Thiel was likely hoping to accomplish for himself with his ultimate God speaker. Neither of mine will ever be sold, but one day they will find their way to my kids.
Although I never play that loud, my wife begs to differ but our musical tastes rarely intersect, rarely a max of 85 db at peak, the 2.2s needed to be played fairly loud to realize the bass and soundstage, either because of lower sensitivity or lower resistance levels or weak integrated. In addition, the tone and separation are not as sweet, 3D, or separated.