The LD Systems Contractor 4 Wall Mount Speaker Pair features an extremely powerful and reliable speaker design that is perfect for numerous installation applications. Providing an unobtrusive yet practical solution for almost any surrounding the passive speakers deliver powerful sound with accurate reproduction and superb speech intelligibility. Each rugged cabinet houses a 4 custom woofer and a 0.75 tweeter with a frequency range of 90 Hz – 20 kHz and an sensitivity of up to 87 dB at 1W/1M. The Contractor can be used either as a full-range setup or as a satellite when combined with a subwoofer perfect for bars restaurants retail shops or even at home. With a weight of just 3.1 kg the Contractor pair is portable and easy to install and the elegant slim shape means it can fit into narrow spaces with ease.