Quam QH16T Speaker Horn The Quam QH16T weatherproof loudspeaker is an American-Made loudspeaker complete with double re-entrant horn, 16W compression- type driver, 25V and 70.7V universal transformer, and an adjustable, universal mounting flange. The QH16T was designed to provide accurate voice paging and tone signaling in both indoor and outdoor applications. This all-purpose horn is ideal for use where a weather-resistant speaker is required for public address and signaling applications such as schools, warehouses, distribution centers, parking facilities, and commercial buildings of all kinds. The QH16T is factory-finished in beige enamel. The adjustable, universal mounting flange allows the unit to be surface-mounted in a vertical or horizontal fashion.