Wadia 860 DAC for Digital Audio system???

Is the DAC in my Wadia 860 up to current DAC standards?

Just getting into Computer Audio.
860's never been upgraded so I can only use 44.1KHz...
I would need to feed it with a USBto S/PDIF Bridge
(I was looking at the Halide Designs Bridge 1.01)
Silent PC with JRIver - streaming WAV files.

Does that make sense or should I go the dedicated DAC route?

I should note that the 860 sounds fantastic on CD's - no Pre-Amp - to Pass Labs x150 and Vandersteen 5's