Hitone Reflex horns are made from heavy duty aluminium circles, casted parts and heavy duty steel bracket to with stand conditions of extreme stress strain & vibration. These are accoustically wellidesigned & are fully matched to hitone driver units to ensure reproduction & dispersion of powerful & clear sound. Horns with large bell dia (21") should be selected for use with high power driver units like FM-40 or FM-60 etc.