EON712 - hooking up more than 2 speakers .. i want FOUR

Simon31

Hi hoping someone can assist. I have a pair of (2x) EON712 speakers, with a single (1x) 718s subwoofer. However, I want to run four (4) EON712s with perhaps 1 or 2 subs. My mixing desk has 2 output channels (L & R obviously LOL) ... how would i hook up these speakers please ??