We have just released our new Symphony Mini DACPre, which was primarily designed for computer-as-source audiophiles.
I went to the website, this is a very nice looking DAC/preamp and I suspect the sound quality is very good. However, I am disappointed that a device "primarily designed for computer-as-source audiophiles" does not in fact have a standard computer based input. IMO, any device advertising itself as primarily for computer based audio ought to have as a minimum a USB input standard. Having an Ethernet input, even as an option, would really be good. That would allow the unit to be networked.
Without a USB or Ethernet connection this is just another preamp & DAC combo. A pretty nice one to be sure, but except for the marketing there's nothing about the unit itself that tells me it's aimed at the PC audio user.
BTW, your website does not have a USB input listed as an upgrade option.