Klipsch SW-115 Front-Firing Subwoofer (Black) Depth is understanding. The Klipsch SW115 subwoofer delivers bass response below 20 Hz. Whether it's the synthesized bass of an explosion or earthquake from a film or the extremely low true bass of a pipe organ or the distinct multiple low notes coming from a bass guitar, you will sit up and take notice of any and all extremely low frequencies. Its frontfiring 15inch driver and slot port not only reinforces the large driver for extremely high output, its design also helps to solidify the cabinet for minimal resonance. That means the Klipsch SW115 subwoofer can be built into a wall or cabinet or hang out in a corner and still deliver maximum output and minimum "boominess." For the greatest placement flexibility, add an optional Klipsch WA2 Wireless Subwoofer Kit for a simple wireless connection. The SW115's presence will be felt even in oversized rooms but its aesthetics allow it to blend within any setup or room size. But this beast is also conscious of its surroundings. The 1watt standby mode offers the very latest in energysaving technology. Hear and feel what might otherwise dip below the radar with the Klipsch SW115.