During the hunt for my setup, I got to audition the Dali Ikon 6 MK2 paired with a ARCAM FMJ A19. Sounded good, though the listening room was not setup well. You may want to consider these in your list.
1. ARCAM - FMJ A19
2. NAIM Nait 5i serie
3. Peachtree Audio Nova 125SE
The above amps are the ones I got to listen recently, all were good in their respective setups, never had an option to mix amps with same set of speakers.
I would suggest, find a Dali dealer and see what amps hes got on demo & start listening. I dont think any of the entry level amps from CA/Marantz/Denon/Yamaha could do justice to the pair of speakers you have. (like CA upto 651, Marantz upto 6005). I've learnt one thing from all the auditions - Power ratings don't matter at all.
Good luck.