Please recommend a tube DAC to build.

[JayH3]

I at least want my DAC to be USB, it would be cool to also have an opticial or spdif input, too. Kit or schematic with parts listing.

So far I am leaning towards the scott nixon usbtd kit but have not found any opinions about its quality.

 

[regal]

The Hag USB DAC kit is top notch.

Also consider a Lite-DAC60 and mod the heck out of it.