[mtm]

I have a Schiit Asgard and was wondering if there is an option to have Tangara use it as the DAC through the USB connection.  If not I might try my hand at some firmware hacking 

Hmm, if that is possible, I wonder if the DAC and audio amps can be turned off/put in low-power mode to conserve power while acting as my desktop stereo?

[jacqueline]

We're not going to be able to provide power to other devices over USB for the initial production run, but other than that we should be able to act as a USB audio source! We also do have pretty good low-power modes for the DAC and amp (we already power them down when your output is set to Bluetooth!)

[mtm]

No need for power (the Asgard has its own power supply and is a thirsty beast, it's running 500mW of Class A bias and acts as a small space heater!).

Now I'm suddenly having ideas of an auxiliary bluetooth control panel widget on my computer for Tangara... so much hacking potential

[talmage]

Are you saying that I'll be able to use an external DAC with my Tangara?  Please say yes.

[jacqueline]

So long as the external DAC is a self-powered USB host, I think it's possible. Those seem like some fairly hefty caveats to me, although I admit I don't have a great knowledge of the kinds of interfaces that are common for external DACs.