Does karaoke system need 2 L1 Pro 16 to create a stereo experience?

I'm about to setting up a Karaoke System for my home. I have a minor concern about the mono sound of pro16. Do I really need two pro 16s to create a stereo? My room size is about 40ft x 40ft x 10ft (height). I occasionally will use this setup in my backyard. 

Hi Travis,

These are mono, so you would need 2 for stereo. 

 

I'm my opinion, I've never needed stereo with any of the older L1 systems

 

Thank you.