The 15NPW is a high efficiency,(97 dB 1watt / 1 meter) 15-inch woofer withlinear frequency response characteristics,high power handling capability while generating low harmonic distortion artifacts.The 15NPW uses a lightweight carbon fiberloaded cone assembly along with a highexcursion triple roll constant geometry surround. This combination provides remarkable strength, high efficiency and a peak topeak maximum excursion of 38mm. Wooferfeatures REDCATT double silicone sealedspider.Power HandlingAt the core of the 15NPW is it’s voice coiltechnology featuring a composite Polyimide former material capable of withstandingpeak temperatures in excess of 350degC,well beyond the thermal requirements ofmodern professional audio systems. The 15NPW cone and dust capare made using an advanced carbon fiberloaded REDCATT pulp. The woofer cone isalso extensively treated to withstand harshenvironments and high humidity. Metalparts in the speaker assembly are coatedfor extreme weatherization protection.