SELENIUM HM3950 2-Inch Bi-Radial Horn 60x30 4-Bolt 2" throat reinforced fiberglass hornBi-radial design maintains consistent pattern controlled Selenium HM3950-SLF 2" Bi-Radial Horn 60x30 4-BoltThe Selenium HM3950-SLF 60 x 30 2" high frequency horn features narrow horizontal and vertical coverage angles that focus sound energy into a tighter pattern of coverage. Includes HS50 support brace 2" throat reinforced fiberglass hornBi-radial design maintains consistent pattern controlket 60 x 30 nominal coverage for high output/high directivity Provides pattern control and acoustical loading down to 400 Hz Includes HS50 support brac