I think you are flogging a dead horse adding a 'traditional' DAC to a C15.

The MS200/600/808/818/861 are the natural progression for improving sound quality of Sooloos items that are an inherently noisy environment of those based on PCs such as C15 and MCxxx products.

I don't know anything about the Bricasti DAC, but if that's the route that you want to take, partnering it with an MS200 should give a sound quality boost over using the C15 as the host audio endpoint.

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).