Square subwoofer technology.

Square subwoofer technology increases output on KICKER SoloBaric L7 subwoofers from Stillwater Designs, Stillwater, OK -- enough to give users the equivalent performance of the next size larger speaker. This advance in performance is primarily due to three factors, each of which results in an increase in the amount of air the subwoofer can move: the square cone area (or Sd) for a given size baffle is 16 - 20% greate