The DAC is a critical component and they do not all sound alike. We don’t know what your previous DAC experiences have been. I don’t know your speakers but the rest of the system ought to be able to resolve improvements in DACs.
I have not heard your present DAC or the Denafrips but I would be surprised is the latter is not significantly better than the former. The best route is to use your own ears, if it is at all possible to audition the DF in your own system. If not, see if there is a return policy. You may have to pay some sort of restocking fee