Outdoor 100V moulded ABS horn speaker packages comprise a full kit for delivering voice alerts in industrial and public outdoor (or indoor) areas. Horn speakers are the most rugged of all speaker units, able to withstand adverse weather conditions and have a focussed mid-range sound for voice projection. UA series mixer amplifiers can be rack mounted in pairs or easily fixed to a wall or under a worktop and have 3 mic/line input channels, 1 Line and 1 Aux input. Each package matches the maximum Wattage tappings of all horn speakers with the max. power of the UA series amplifier (<90% volume setting recommended). Using lower tappings, more speakers can be addded to the amplifier, provided that the total combined speaker Watts is <90% its max output power.