On the flip side, I have found my Thiel SCS3 to excel at both music and dialog clarity. I had heavily considered the larger of the two NHT centers to go along with my Thiel 3.6's, but once I compared it to the SCS3, I was immediately blown away by the SCS3. The NHT sounded like a speaker reproducing music, whereas the Thiel sounds like musicians right in front of you. Very transparent and very smooth. The drivers interact very well, and you really can't hear the crossover points. For dialog, I have also been very impressed. Both DVDs and sports broadcasts sound great and are very easy to understand.
Hope this helps, Tom.