*DAC

In my not very scientific opinion, you have to spend around $10K to get the detail you are looking for.

I started out with a humble Schiit Gungnir, and ended up moving to ever more resolving/expensive DAC's. 

I finally settled on a Brinkmann Nyquist II. Much more than I wanted to spend, but I scored a used one at a great price. I think it will provide you with as much definition as your system can provide. A less expensive option would be the Ayre QB-9 Twenty, which you can find used or upgraded by Ayre for a reasonable charge. It is quite transparent. I use it for my office system.

Bob

@gdnrbob "In my not very scientific opinion, you have to spend around $10K to get the detail you are looking for" UGH, that's depressing, I better start saving up then.

Once again, much depends upon how resolving your system is. 

Also, your cables will make a noticeable difference to sound reproduction. Add to this using 'dejittering' devices like the Wayversa.

Bob

If your equipment supports the AES Standard, then your XLR cables won't make much difference. (if not, or you aren't sure just search for 'Atmasphere' or PM him directly. He can provide great info).

DIY is something you probably don't want to try, unless you have some experience-Not that you can't do it, but there are some subtleties that you should know before undertaking the task. (Perhaps PM @eric squires).

And, to try to keep you from chasing your tail. I think PM'ing John Rutan (Audioconnection) would be the best way to go. 

Bob