Ideas for small religious sanctuary-Acoustics Forum-Acoustic Fields Forum

I am assisting as a volunteer to help design a small room but I need to get it right. It’s a 10′ ceiling, 35′ wide by 40′ long. They are in the process of building it now and can make certain adaptations at this stage. I think two speakers ceiling mounted on either side of the stage, but they need to disperse to sides and reach the rear of the room. They might be open to installing sound absorbing panels too. Further out, we will need a 70 volt system to reach offices and hallways fed by the main sanctuary source, or possibility to choose an optional source such as music. So amplifier ideas are very welcome! Thanks.