Together with the built-in amplifiers and digital signal processors, the powerful woofers operate down to 17 Hz. This is not possible for traditional loudspeakers.
@kota1 Well, I take that kind of marketing babble with a grain of salt, but they did go deep and they stayed controlled, not boomy. What they can also do is change the bass level depending on volume. Like we used to have a loudness switch on an amp in the old days. This now is a fluent change, lower volume, gradual lifted bass. It really makes a difference.