Selenium manufactures a variety of professional horns to complement their range of drivers. Selenium horns can be used in the most demanding of touring environments. The HM11-25 exponential horn features a low cutoff frequency, compact size and is perfect for stage monitors, side fill, and P.A. applications. It has a 1" throat and a 60 by 60 degree nominal coverage. The HM11-25 is constructed of ABS plastic and features a screw-on connection.