As I’ve written about in the Thiel owners thread:
I’m not a Thiel-only guy by any means. I’ve owned all sorts of other brands of speakers I love, and I still own not only Thiel, but MBL, Spendor, Waveform, Monitor Audio, Hales.
They all do something great, but different.
But the Thiel 3.7s and 2.7s I’ve owned for a while now are about as close to the ideal as I think I’ve owned thus far, in terms of the things I love: timbral beauty and faithfulness, liveliness and drive, image density, soundstaging and just "disappearing" as a sound source. And their looks for my tastes are just about the perfect combination of traditional and contemporary, refined, elegant, with impeccable build quality and finish.
Before I got the slightly smaller 2.7s I went on a binge this year of trying to find a slightly smaller speaker to replace the 3.7s. I demoed the latest speakers from Audio Note, Raidho, Audio Physic, Harbeth, Paradigm (persona), Revel, Focal (from stand mounted to the Kanta), Monitor Audio, and others I’m sure I’m forgetting.
And every time I returned home from the demo and played the same tracks on the Thiel 3.7s my jaw would just drop again. I found every other speaker I’d auditioned had some excellent quality, but also some sticking point, usually some lumps somewhere in the frequency response or a sense of the cabinet at some points, etc. But the big 3.7s in my room truly disappear as sound sources from the top to the very bottom, with beautiful organic tonality, transient incisiveness, and a mammoth walls-gone soundstage filled with dense, air-moving images.
Every time it was like the Thiels were saying "This is what all those other speakers were trying to do." And I am still left with the feeling that, although of course speakers within the same range as the 3.7s will have their own virtues, in terms of what Jim Thiel accomplished in the sense of low perceived speaker distortion, and fidelity to the signal....he was far ahead enough that many speakers are still trying to catch up. He was just that good of an engineer!