The TH118XL, a variation of the famous TH118, is a subwoofer that is useful for both indoor and outdoor applications. The tapped horn design takes full advantage of the driver element by doubling its output ability. The result is more volume from less input. Combine that attribute with the high power handling of the driver and you have one of the most powerful subwoofers in the market. In many cases a single TH118XL will take the place of 2 standard 2x18” front loaded cabinets. The overall cost and physical size is reduced-along with less amplifiers needed to achieve a particular loudness. The interlocking skids on top and bottom allow it to be stacked for even greater output.