I have a Roon Nucleus (new) with Samsung 2 TB SSD, 2 Bryston 7B mono amps, and 2 B&W 802D Speakers. I have no analog files and am only interested in playing back digital hi-res files from Tidal and Qobuz. All my gear and internet connection are in my basement except the speakers which are on the 1st floor. I am seeking a good DAC/preamp to connect between the Roon & Bryston amps. It appears that I must place any new DAC/Preamp in the basement. The DAC/Preamps I have been looking at would seem to be very hard to use making changes and going up and down stairs to evaluate. Their remotes or apps seem very limited. Curious about suggestions to a solution such as a robust app with a very good DAC/Preamp. I have been looking at the Topping D90SE and the RME ADI-2 FS 2 Channel DA Converter. Open to all opinions and appreciative of all suggestions.