Indeed! In another decade, these big speakers and high power amps, and all the problems associated with them, may go the way of the gramophone. I was reading in IEEE Spectrum magazine how companies are working on taking custom measurements of listeners' ears and developing personalized head-related transfer functions. These can then be used to create virtual images within headphones that will mirror real life. We'll be wearing Atmos+++ on our heads!

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated