$40,000 DAC? someone really went ahead and fabbed their own silicon (~$1mil for low volume run)? or did they maybe picked up $100 (at most) part, put it in a shiny box and started looking for suckers?
Do you even realize what $40K gets you? we are talking military grade Agile^^key'hole/RohdeShwartz multi gigahertz arbitrary waveform generators here, not some pityfull audio stuff.
Here are some examples of multi thousand dollar scams: http://www.lampizator.eu/LAMPIZATOR/REFERENCES/wadia%20WT%20... http://www.lampizator.eu/LAMPIZATOR/REFERENCES/Goldmund/gold... http://www.lampizator.eu/LAMPIZATOR/REFERENCES/THETA%20Unive...
Audiophoolery is on the same level as creationism, it only works on uneducated simple minds with no metacognition.