op
seems to me you have great gear, and the dan wright modded cambridge streamer/dac is excellent (i have one sitting here, i enjoy it as much as megabuck units from msb, weiss, chord)
do you have wired ethernet into your listening room? if so just get an etherregen or na eno/muon filter to clean up the feed, then run ethernet into the cambridge - then get a tidal or qobuz sub, and listen using the cambridge app
ditch the topping, its not in the same league as the modwright cxn2 - the fact you can't currently hear the huge sonic difference between the two shows how poor your front end digital feed is...

