The conservatively rated "PD" Series drives when mounted on "H" Series large format horns are designed to "cut through" in high-noise environments and over long distances. Their housings are zinc die-cast to protect the inner workings and have a fine screen to protect against nesting insects. Their screw-on design with a 1 3/8" - #18 pitch prevents air or water leakage.

Available in 16 Ohm or 70.7 Volt models, this versatile line may be connected in series or parallel, as the application requires. As with most high performance drivers, replacement diaphragms are available.