If you are interested in detail at any cost then don’t consider the ARC i50. But if you want beautiful music rendered in natural tone with great detail then get the ARC i50! I have heard the other ARC integrated, they are beautiful… midrange bloom, fully fleshed out and detailed bass. I have a friend who has heard the i50… it is like the higher powered integrated. You will not need more power. The rhythm and pace (musicality) of the ARC is amazing, without loosing the detail.
You can see my prejudice by looking at profile for my systems.