The WHARFEDALE's SIGMA 10 is a passive speaker that utilises the newest proprietary Wharfedale Pro driver technology in a sleek and inconspicuous design. Furthermore, SIGMA 10 employs a newly developed angled corner port system that allows for smaller dimensions without sacrificing overall sound quality. SIGMA 10 is already a versatile and popular alternative for installers, available in black or white and with a wide range of rigging choices.