Can't speak to the Thiel 2.4s (early Thiel models like the 3.5 were terrific but had an overall tonal balance slightly tilted to the treble, so auditioning them was a must because they weren't everyone's cup of tea), but do agree with Tomcy6 that the Dalis are indeed a warm, rich speaker and are a pleasure to listen to, so long as your room is big enough to handle them--i.e., I would not put them in a small room.
Dalis or Thiels
Any thoughts on the Dali Helicon 4's mk II and the Thiel S 2-4 with mac equipment thanks