Desktop System DAC


I'm trying to put together a decent desktop system for use in my office at work. Most listening will be done at low levels, so low level resolution will be critical.
I just purchased a Rega Brio-R and John Blue JB3 speakers.

Looking for a decent DAC to pair with the above.
Listening to rock, jazz, blues not much classical so timing and detail would be key.

Heard great things about Schiit Bifrost.
Any other recommendations for streaming from my computer??

Thanks!!
wisnerjb
Concero from Canada. Read the review on audiostream.

Steve N.
Empirical Audio
I use the Grant Fidelity TubeDac 11 but with a USB to SPDIF converter (M2Tech Hi-Face II) and it sounds really nice. If you plan on going straight USB to USB on most DACs you might be a little disappointed.
Benchmark DAC2 is amazing and so versatile. It maybe a little expensive for a desktop (like I use) but I do not see myself changing this DAC for the next 20 years. I have a tuner hooked up, cable TV, and a USB computer for my FLAC's. The speakers are KEF LS50's powered by Parasound A23 amp.

I had Audioengine A2 speakers for a long time thinking that for a desktop office system it would suffice. But it was not really satisfying. So I changed to the new configuration and it is stunning. I love to sit and work at my office now.