Screw that, no audible sound difference, get whatever one is cheapest. Talking about the housing though, a mate has an Evo 150, it's awesome. Probably worth it as an end game, better than stuffing around with a lot of other crapI can see the the RME with the AKM chip becoming the 'Garrad' of DACs. People will pay over odds to get hold of one. In a handmade Oak case, with Ebony and Rosewood inlay. The case costing10 times the price of the original DAC.