Connect Roon with Meridian M6 and 4 pairs of analog speakers

I am using Sooloos MC600 and I recently installed Roon. Roon is much more advanced and with more features and I am planning to decommision MC600 and use Roon instead. Currently MC600 is connected to a pair of Meridian M6 speakers and another 4 pairs of analog speakers. Can you please help me understand what I need to do to connect Roon directly with these speakers without the use of MC600?

Many thanks!