If you want to get a relevant answer, you should describe your listening environment and what does not satisfy you in your current setup.
But in general, I would not expect a big difference unless we are talking about a very close nearfield setup, where the coaxial driver could make a difference (and hiss, if the Genelecs have lower levels thereof, which I am not sure about). Otherwise, I'd rather get a miniDSP Flex to add room EQ.