Need a Sound Engineer

Designing an outdoor beer garden to include a Stage for small concerts and events as well as distributed sound for regular music, we have 3d renders of the space which we will provide. Concerns are reverb sound from adjacent buildings, so need to understand speaker position/direction.

Need wiring diagrams, help selecting components from China, equipment for AV closet, speakers around the venue, wiring diagrams.

Any electrical load requirements of equipment, wiring/cabling requirements