I’ve just upgraded from a pr of CS2.4s to CS3.7s, it’s a big jump in performance and I think and hope I am done upgrading my L&R speakers for a long time. I love the CS3.7s’ holographic image with a wide soundstage. Maybe it is my room, with the CS2.4s, the soundstage is somewhat limited to the space between the L&R speakers, with the Cs3.7s, I hear stuff 3-4ft outside of the L and R speakers. Even movies sound better and a lot more realistic, it’s scary sometimes. The boring sound might be due to the Mcintosh amp. I find that is one of the characteristics of Mcintosh amps, along with the natural sounding CS3.7s, it might sound boring to some. The TAD should have better bass extension according to the specs(28hz vs. 35hz) than CS3.7s, and might do something better than the Thiel, it should be as it’s in a different price point. Is it worth the extra $5-$10k more, that’s for you to decide?