Atoll IN200 sig vs Anthem STR Integrated Amp


I'm pretty new to hifi and have decided to join the world of quality 2 channel listening.  I've narrowed down to the Atoll and the Anthem.  I'll be connecting them to a Rel 9ti and (in July) Burchardt s400's with the upgraded crossover. 

I would appreciate any thoughts on the Atoll and Anthem.  

Thanks very much!