I don't know if I'd go that far. I've had the 1600 and the Audio Alchemy, and I kept the Audio Alchemy. It's a little more rolled off, but what it gets right, it gets righter, IMHO.
I also mucho the MSB Link DAC III (which I believe I have 2 of, now), which, at the same time, has better frequency extension in both directions, and is much more moddable, to those with a DIY inclination.