A horn does have a dynamic driver like most other speakers. The difference is that the horn acts somewhat as an amplifier after that sound has been produced. It is like cupping your hands around the outside of your mouth to scream accross a football field. Because the low frequencies of bass notes are so long bass-horns often have to be folded as in the Klipsch K-horn. This speaker uses the corner of the room as the final fold in teh horn. There is also a website for the "worlds largest subwoofer" which uses a horn design.
Horns are highly efficent which means that you can power them with modest amplification. Check out old Klipsch or Avangarde.
Horns are highly efficent which means that you can power them with modest amplification. Check out old Klipsch or Avangarde.