Actually, the more I think about the more I realise have already such events are multi-media presentations because so much of our normal experiences these days are technologically mediated. As you say, "concert-quality" sound systems are examples of such media.

I do recall about a dozen years ago an email going around about a salaryman who person who had a Presentation for the passing of their mother. At the time it was considered gauche. Today, not so much at all.