Fiamm Technologies Horn Compact Twin. Twin Dimensions: 8 inch x 3-1/4 inch x 2 inch. Horn Compact Twin 7431023. Flamm Technologies. Features of Fiamm Technologies 7431023 Horn Compact Twin Description RB-86 (TWIN) Min. dB Rating at 1 Meter 108 Current Draw (amps) 8 Dimensions (L x W x H) 8" x 3-1/4" x 2" Package Contents: Fiamm Technologies 7431023 Horn Compact Twin Fiamm Technologies 7431023: Horn Compact Twin