how do usb fed dacs compare to cd sources ?

[Spiug31]

With my 4-channel Beta22 being assembled by thrice and only having had an H120 fed piccolo dac then my current H120 or usb fed mini-dac I have a question. How do usb fed dacs compare to cd sources ?

I am particularly curious about the balanced redbook cd sources in the sub $2000 and sub $1000 price brackets either new, secondhand or pre-built diy.

[Spiug31]

p.s. The files fed via usb are currently being ripped with abcde into flac. The only tweak being applied is a

statmat CDi Blue