I got a C2700 with the DAC2 board and it was quite a bit better than the Schiit Audio Gumby multi bit i had prior. That said i now have a Chord DAC and its significantly better than the DAC2 board but it should at more than the total cost of the C2700 preamp.
I would look for a DAC2 board first its quite good for the cost and has HDMI E-ARC input as well if you care to integrate a TV into your system. Works very well and would be a good update from the DAC1 board. Other options others have already mentioned.