Bifrost uber vs Wyred 4 Sound Dac-1

I am looking to purchase a DAC for my squeezebox Touch.
Looking at these two choices.
Bifrost Uber (no USB) or Wyred 4 Sound Dac-1
I run an all Krell EVO system so it's pretty revealing.
Any thoughts would be appreciated.
I have the Wyred Dac-1 and I am extremely satisfied with it. I have had it since January 2012 and have no desire to get a different one. I am using a Musical Fidelity V Link 192 usb/spdif converter as well.