The Totaldac was far better than the Bricasti in every area, even the owner of the Bricasti SE conceded, and is going to sell it to go to R2R.
This shows that in this system, one DAC beat the other. Did they even use the same interface? Was it USB or S/PDIF? All of this matters. Even 2 different USB interfaces will perform differently. It does not prove that Delta-Sigma is inferior to R2R.
The devil is in the details, the implementation and design details, not the D/A technology IME.
Steve N.
Empirical Audio