Congrats on the DCA Stealth. Bet it pairs nicely with the ADI 2! Gotta save my pennies - would love to eventually add the Stealth to my stable...Just added Dan Clark Stealth to the lot. Ouch! A major investment, but I mostly use headphones for music listening so its quite logical to concentrate the spending there.
Not much more left to do - I use the premium version of the IDAGIO classical streaming service (providing the original CD quality) and the DAC/amp is the well designed RME ADI-2 Pro so I guess after this investment, the quality of the recording is the main remaining limiting factor.