Amir,
  If you are looking for a transparent DAC and it could have a built-in preamp, you may want to take a look on:
  Merging + Nadac Nadac Player, same but a built-in music server (or something).
  I did not listened to them, but at least their Pro Audio gear usually are very transparent. I rather prefer valve electronics but if I was in the market with the mind opened for SS DAC/Preamp I would take a serious look on those.
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