Yeah! A lot of people want to go further with extremes.
Rudy Bozak was a hi-fi pioneer and produced many loudspeakers in the 1950-1960's. One of his most famous products was a loudspeaker cabinet enclosing four 12" woofers in a sealed baffle.
Once he had built a big woofer, I don't recall what size, which might probably have been classified years later as a sub. At his first attempt to test it, the driver basket got distorted by the powerful magnet. That was the end of the project.