Whether the dCS DACs measure better than a Topping D50, I cannot say.
Stereophile measurements of their $35,000 DAC.
Very excellent (except Filter 4); but it’s barely better than the DAC3 in some instances, and barely worse in others (Stereophile’s DAC3 measurements, for a more direct comparison over Amir’s measurements). So, I would not recommend it as it’s almost 20x the price the DAC3 B model, and 140x the SMSL SU-8.
For a dedicated Hi-Fi streamer, Salk’s StreamPlayer lineup is supposed to be good.