The One Systems 112.HSB is a premium-class 12-inch subwoofer housed in a white enclosure that's suitable for indoor and outdoor professional audio applications. The 112.HSB is designed to provide additional low-frequency output for systems using small and medium-format One Systems full-range loudspeakers. The 112.HSB's 12-inch woofer is equipped with a 4-inch voice coil. Its patented 12I/O woofer utilizes a voice coil that's wound on the inside of the coil's support structure which provides high magnetic system displacement and increased thermal transfer to reduce power compression and ensure higher reliability. The 112.HSB is housed in a thick-walled, injection-molded enclosure that is immune to moisture and temperature extremes. The 112.HSB is equipped with a stainless steel grille and its suspension points and internal enclosure reinforcements are made with 316 marine-grade stainless steel. To maximize system performance, the 112.HSB requires biamplification and use of a DSP-based speaker processor. The 112.HSB can be run as a "classic" subwoofer when used with small and medium-format speakers. When combined with higher output systems, the 112.HSB can be run in an "overlap" mode to combine their outputs to produce additional LF impact.