Absurd thread.
This non-sense concerning DAC audibility of different chip manufacturers belongs at Audioasylum.com, not Audioholics.com.
Or, did the original poster mean for people to post their engineering experiences, integrating the chips from the different DAC manufacturers listed? If this was the intention, I apologize. In that case, I would suggest that you post at a more suitable site for electronics design, as I doubt you will elicit a substantial response from this forum, concerning that topic.
-Chris