The SF-158 3-way, full-range system is designed to provide the Sound Force series with a powerful stand-alone solution. A horn loaded 15? bass, and an 8? mid range in a bullet-type loading device handle the low to mid range. The M-75N neodymium compression driver provides exceptional high frequency reproduction. The SF-158 can be used in either the vertical or horizontal position thanks to its rotatable mid-high horn assembly. Selectable biamp or triamp operation is possible. Custom colors can be ordered.