Okay, so I downloaded JRiver to test it there. I can't get JRiver to work on ASIO at all, but with both WASAPI and KS I get the bit-perfect indication on my STU (I didn't in Foobar) and the sound starts immediately. My unit doesn't seem to like ASIO? Anyway, I've been happy with my STU and am even more happy with it now.
Update: I've now downloaded and tried the AIMP software. ASIO, WASAPI, etc all work flawlessly.
Edited by gatornavy - 12/21/13 at 6:20am