First off like everyone has suggested, you have to try in your own system. A number of years ago I heard an all Krell system with Sonus Faber Cremona speakers and it was breathtaking. ARC products are decent but IMO there are better options. I used a Krell KAV-250 on my Alon V MKII speakers with good results at one time. As I am not familiar with your speakers, it is hard to know how they sound and how your other components match together. Even a used Rowland M-112 is a good little amp that has a sweet mid-range. Too many options without knowing your speakers. Sorry that I cannot be more helpful.