OK, so here's the deal. I have a Audio GD NFB-5 DAC/headphone amp/pre that I am using with a tube amp right now for my 2 channel system.
The NFB's intended use was to be used with the mini-itx computer I build at work so I had a portable hi-fi rig. But I stumbled across something I very much want, a Yarland tube headphone amp.
But in order to use it I would need a DAC as its not a DAC/headphone amp combo like the NFB.
So I am hoping to find a small USB DAC of decent quality that I can find a way to put into my mini-itx computer build. I have a PCI-Express x 16 slot meant for a GPU that I am not using or planning on using so in theory I could use a computer soundcard, but I just think there has to be a decent kit out there that will be better. That and I know soundcards can introduce more noise into the system.
I am hoping to be able to keep the USB DAC all internal to the itx computer so I just have the two items on my desk rather than three. I planned to use a internal USB header so I can use a super short cord, but I am somewhat limited space wise in what I have to work with.
Here are some pics of how much space I have to work with: