I just noticed this thread. All that I can say is that my experiences are greatly at odds with what has been said here. Initially, I just used the Minerva driven by several transports and a music server. With the exception of using it with the Oppo 83 as a transport, I was quite impressed with the sound. This was primarily the width and depth of the soundstage as well as the bass. After about two weeks, I was even more impressed as the topend was more extended and sweet.
It had always been my intent to use the Minerva with a Mac server using Amarra and Firewire. The Mac has a USB output along with the Firewire 800 output, but the Minerva has no USB input. I had heard such a setup prior to buy all of this and was amazed at what I heard. When I finally got everything together and waited about a week, I would flat out say nothing in my experience with digital sources even approaches what I am hearing.
I have Shindo Labs vinyl front end and love it. The new digital front end does not sound like vinyl, it sounds like master tapes. There are several conditions, however. First, at least in my system, the Minerva at it full output overloads the line input. I find that two pushes on the Minerva down volume, while still pretty hot, works best. Second, I think the use of Firewire is essential. Unfortunately, I cannot really test this, but with my S/P DIF sources, I never got what I hear with the Mac, firewire source. Third, the Minerva and the Mac are very sensitive to power conditioning and to vibration. My mac using the trickle charger when plugged into the Synergistic Research PowerCell 10SE improved so dramatically, that I had to go back several times to make myself confident of what I was hearing.
I have never heard the Museatex Bidat DAC, but did long ago have the EMM dac. I have heard the AMR 777 and really could not stand it. The best dacs I have heard have been the input on the Lindemann 820S, the Exemplar Xindak Dac 5, and the AA tube dac.
All of this once again, suggests that component's sound depends on what is in the system and what ones tastes are. Given past experiences I expect that the Weiss Minerva will be soon displaced by another dac. Some say the new Weiss Dac 202 will do this, but I have yet to hear a production version.