Description Product Reviews Ideal for: Warehouses, Parking Lots, Complexes, Stadiums. Indoor/Outdoor Weather-Resistant 5-Watt Total Built-In Amplifier & Volume Control (One-Way Speakers Only) Stainless Steel Hardware (Includes Mounting Bracket ) -6 Valcom Power Units Easiest Mounting Method In The Industry! Make installations easy with Valcom Omni-Lock I-Beam Clamp Mounting System Mount Base Before Construction Is Done Moveable – 360 degrees rotation (other horns only go up and down) Shatter-proof base fits Seven standard electrical gang boxes Valcom Power Units Every Valcom product is marked with either a positive, negative or neutral power unit. Simply add up the negative power units and then purchase a power supply with a greater value than the total power consumption of the system. If you have extra power units you can add speakers to the system at a later date, extra power is OK lower power will cause a performance problem on your paging system. One Valcom power unit = 50 mA, -24 Vdc 0 Reviews Hide Reviews Product Reviews