JBL Speaker? Should I use it for outdoor theater?

In my opinion, the current trend of 2019 will not use JBL speakers anymore. You can refer to speaker lines like loa array nexo, array speakers RCF ...
I recommend you a reputable shopping address. It offers a lot of outdoor sound systems you need. http://amthanhsankhaupro.com/dan-am-thanh-hoi-truong.html

Hello!
I think, JBL speakers can meet all your requirements. Please refer to one of the JBL loudspeakers used for outdoor stage audio systems here: https://khangphudataudio.com/dan-loa-dam-cuoi.html

Hi,
I am talking about a professional outdoor sound system with an area of about 1000m2 or more.
Can you give me the best solution?

You need to be more specific.

Are we talking pro line or consumer, and how large of an outdoor theater?

I'm absolutely certain you can find a professional solution. :)

Best,
E