I recommend Audio Reseach… Luxman is also a good consideration. Unless, you only listen to rock I wouldn’t think of Mac. There are two “known pairings” with SF, Audio Research and MAC.
I have now owned three pair of Sonus Faber: Cremona, Olympica 3, and now Amati Traditional. With Audio Research you get a large soundstage, with great details and fully bloomed midrange and bass… incredibly musical. With Mac you get lots of midrange and more bass, minus the details, (my system under my ID… you can see my love of Audio Research).
I have heard the VSi75 a number of times… it is so emotionally involving and simply beautiful to listen to… I want to buy one… but I have no where to use it. If I were you I would find a way to listen to it. From your description of what you want, this would be it… either you will buy it on the spot, or move on to Luxman.