There is nothing wrong with the DAC on the C50 if you are using the newer MC275. Because mixing old and new equipment just doesn't work. I have 2 MC275-V with C2300 and B&W 802 Diamond, they match well, sound fantastic with no problem.
If you streaming via USB, Get the newest Parasound ZDAC With all Asynchronous Input for $475. You will be enjoying all kind of music you play instead of tweaking for next 10 years.
If you streaming via USB, Get the newest Parasound ZDAC With all Asynchronous Input for $475. You will be enjoying all kind of music you play instead of tweaking for next 10 years.