The rotary subwoofer would have paired nicely with theatrical sensurround https://en.m.wikipedia.org/wiki/Sensurround https://en.m.wikipedia.org/wiki/Sensurroun

The rotary subwoofer would have paired nicely with theatrical sensurround https://en.m.wikipedia.org/wiki/Sensurround https://en.m.wikipedia.org/wiki/Sensurround whos heyday was in the 1970s and employed large drivers and enclosures the size of a few refridgerators, large enough to require the removal of seats to make room for them, at a loss of revenue...