Need help with xone 42 setup

Need help with xone 42 setup

So I just got my Xone 42, and I also have a Xone K2.
My Xone 42 came with just a powercord, now I am wondering what else I need to get things going.
Do I need another K2 in order to get sound from all 4 channels?
I’m pretty sure I need to get 4 RCA cables for the channels, where are the other 4 ends of the RCA going to go??
Really stumped here guys, need some help.

The K2 only has 2 stereo channels. So, yes you need 2 K2 if you want 4 channels.

You connect the K2 with one pair of RCA cables and a pair of 3.5mm jack to RCA. The RCA output on the K2 is on the back and the jack is on the front.

This video shows how.