The SWi 112 - SP is an active plug-andplay subwoofer of matchless performance and is as such the ideal bass supplement for the passive K&F speakers and the active models of the K&F SP series. The precise, voluminous bass response which characterizes the SWi 112 - SP makes it suitable for a variety of uses where high quality and modest dimensions are the order of the day: in media and conference rooms, lecture halls, live clubs, as well as theatres, discotheques and exhibition booths. In parallel operation the SWi 112 - SP is impressive as part of a high-quality self-powered compact system, separately it can supplement passive K&F full-range systems, for example as an active mono subwoofer. The innovative, fan-free system electronics weigh only 2.5 kg. They encompass the digital 1 kW Class D power amplifier and an elaborate limiter section with RMS and peak limiters. They take care of the system equalization and optimize the phase and frequency response and cut-off frequency. 12 concealed M12 thread inserts for suspended operations on ceilings or trusses are standard equipment. The SWi 112 - SP is impressively versatile, is extremely compact and has an excellent power spectrum. As a professional active subwoofer a class of its own! Ideal for fixed installations of the highest standard.