HI @Mike_Kimsey ----- Thanks for the follow up 
May I kindly ask you to confirm/verify the following information for me:
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Can you please expand on the description of your current setup as seen here.
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Can you please provide screen shots of your audio settings in roon.
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If you remove the DAC from the equation and play out of the internal sound card to a pair of headphones are you noticing the same issue?
-Eric