The miss is the 6.1 preamp. It was having some weird electrical problems, and I do believe it blew out the power supply of my tube amp. I did like the funky touch buttons, and the straight wire passive mode was nice (why don't all preamp have this option?!?). I'll sell it to anyone cheap, if they want it.
My main DAC is the Digital Link III. It has a nice, enticing, warm sound, that I can listen to for hours. Digital usually tires me out in an hour.
My only complaint about the DAC, is that there is a very low hiss in the right channel. I can't hear it when music is playing, but I have to get it sorted because it drives my OCD nuts.