You may want to talk with the manufacturer of your speakers, or a dealer that sells them to obtain their perspective.
I bought the H590... because that line (Hegel) was what Harbeth demos their speakers with, and I was wanting an amp that would add dynamics, clarity and detail to my Harbeths. It did!
That really is all that is relevant... how well does any amp you are considering drive your particular set of speakers. With mine it was Hegel. With yours it may be something entirely different that the two you're considering... you just need to find out from the manufacturer / dealer.