Can I biamp nap 110 via snaps

My system consists of a Marantz 94mk2, Cambridge Audio DAC 1, Naim 42.4/110/snaps/Kef103/4 Ref.

I happen to have another nap110 and wonder whether possible to use and biamp my system via snaps. If yes, how?

And how Naim Hicap perform against the snaps and it is worth upgrading?