I have not heard the Thiels but my reading tells me that they are very different speakers from the Dalis. Now I may have gotten it wrong regarding the Thiels, but my understanding is that they are a more revealing speaker that will show any deficiencies in your system and sources (cds,vinyl,etc.). If you have confidence that your system is up to the task, i.e. no brightness or other distortion, then they might be what you are looking for.
On the other hand, the Dalis are more forgiving and easy to listen to. They are not detail fanatic speakers, but they are not slouches in that department either. They are very musical and fall a little on the warm, rich side of the sound spectrum. I have owned Dali Helicon 400s and enjoyed them a great deal. I can recommend them.
On the other hand, the Dalis are more forgiving and easy to listen to. They are not detail fanatic speakers, but they are not slouches in that department either. They are very musical and fall a little on the warm, rich side of the sound spectrum. I have owned Dali Helicon 400s and enjoyed them a great deal. I can recommend them.