This thread has gone dry and I don't see anyone discussing the attributes of HD and USB sourced audio, as initiated here. I see nothing being discussed openly from Mach2 or dB Audio. Hopefully they haven't buried themselves at Facebook.
Dave, Mach2 has been slammed with orders and has the new 2011 Mini rolling out the doors. The battery powered version is amazing in its' transparency and resolution. Smooooooooooth..................., too.
Eric - dB Audio Labs has a new hi-rez DAC just about ready to bring to market. It got very good reviews at RMAF. There are some other things happening, too. Just stay tooned for a bit longer and all will be revealed.
Dave