I just saw this posting and wanted to make a comment on it.
I got one of these miniplats and found it to be quite remarkable.
Why it works, I have no idea, but it has really made a difference in my system that uses a 2010 MacMini.
I was so impressed by it that I just wrote a review in Audiogon in the tweaks section.
IMHO, you have to try it to really appreciate its effect. Again, why its effects are so much to the upside, I have no idea, but my computer DAC based system is much better for it. It makes my MacMini look even more cool, but that is beside the audio point.

listening
Ed