The One Systems ONE.SL15 is a weather protected, direct-radiating 15-inch two-way loudspeaker solution for professional audio applications indoors or for inland uses outdoors. The system’s direct-radiating transducers include a 15-inch woofer with a 3-inch voice coil and a compression driver with a 2.5-inch pure titanium diaphragm coupled to a large rotatable 60o x 40o horn. Its one-piece rotomolded enclosure is made of UV resistant High-Density Polyethylene (HDPE) with internal steel reinforcements for added strength. The enclosure is ported to enhance its low frequency performance. The ONE.SL15’s input section features an input weather cover with an IP 68-rated gland nut and its barrier strip has stainless steel hardware. The enclosure has 10 x M10 integrated stainless steel rigging points, which can be used in conjunction with the included U-Bracket for mounting to walls or ceilings. An optional pole mount bracket is also available for additional installation flexibility.