I also have Sonus Faber Elipsa SE speakers. I am driving them with an Audio Research Ref 110 amp and Ref 5se preamp. So I have a vague idea of what your system sounds like.
I use Shunyata cables in my system. I have also tried Sain cables in my system and they were VERY good. Both Sain cables and Shunyata are excellent matches. I have seen ARC demo equipment with both. ARC uses Shunyata wire internally for all their reference series components. I don't think you could go wrong with either brand.