If you have the space, I don't think you'll find better than the JBL 4722N for this application for under $4k
https://www.lightingimages.com/product/jbl-4722n-2-way-screen-array-with-network-passive-application...
https://www.lightingimages.com/product/jbl-4722n-2-way-screen-array-with-network-passive-application...