Anthony Cordesman said this in his Nov. 2008 3.7 TAS review that was otherwise a rave:
"You will hear the hardness & excessive upper-octave energy that is actually present in far too many classical recordings of piano, flute, clarinet, violin. You will hear the bad moments on recordings of tenor and, particularly, soprano voice....Accuracy has its costs..."
Whenever I see the word "accuracy," I think it's a code word for fatiguing.
Thiel actually has this review on it's site (a tribute to their honesty, I guess).
Any comments? Are these the anti-Harbeth?
(note: above I said that Stereophile compared them to the Sophias, but I can't find that right now so I may be mistaken about that. Sorry. I will keep looking. A Stereophile review actually said the 3.7s had more "grace" than the Wilson WP8s -- by Wes Phillips posted Dec.15,2008)