Just a word of advice. Different usb cables can sound different in different systems. We did a shoot out with a Wire World Platinum ($600), Light Speed ($600), WW Starlight Red ($120) and a cheap Pangea Silver cable. In my system the Platinum sounded the best, then the Red. The light speed and a pangea were bright although the LS had the most detail and resolution. In my friends system who owns both the Platinum and the LS, the LS sounded the best and was not bright at all. The Pangea was the worst of the lot. The differences were pretty dramatic.
Adding a Regen to the mix, it made the differences more a little more subtle but the Pangea still sounded thin and bright.