Received mine around June 10, in Canada. Very pleased with the performance. Trounces a Creative X-Fi card, and versus a Xonar HDAV 1.3 with the H6 daughter board its about a tie. So nice to not hear any noise which usually accompanies analog output from PC soundcards. I found the SPDIF input to sound better than the USB input. USB performance varied from one PC to another-not sure why - motherboard? other usb devices connected? Got crackling and artifacts with usb on one PC but not another. A very worthwhile purchase and a thanks to Massdrop for making this happen.
BTW, does anybody know what op-amp is used in the line level analog output path? Maybe potential to improve on that part of the circuitry.
DerekB"USB performance varied from one PC to another"
I've actually heard that a few different times regarding many different DAC units. I'd like to get an optical cable but I haven't bothered to do it yet.