Comparing a 2-way bookshelf to a 3-way tower is really apples and and oranges. Harman Audio's research indicates 30% of a speaker's preference bass performance, and a bookshelf isn't going to keep up with a tower there.
A two-way can be used nearfield for instance which a 3-way tower can't at all, as you typically need to be at least three meters away for all the drivers to align their output properly.
A two-way can be used nearfield for instance which a 3-way tower can't at all, as you typically need to be at least three meters away for all the drivers to align their output properly.