Overview
Competitively priced PD Series compression drivers provide accurate sound reproduction, optimum intelligibility, and dependable performance in commercial sound, high-power music, and PA loudspeaker systems. The integral 70V line-matching transformer is varnish impregnated for maximum environment resistance and life expectancy, and incorporates a screwdriver selectable tap/watts selector switch. It also includes a protective terminal cover with built-in strain relief to assure secure cable connection. Standard 1-3/8"-18" thread male coupling for use with screw-on horns.
Specifications: • Power rating: 60 watts • 70.7V Taps: 2.5, 5, 10, 20, 40, 60 watts • Frequency response (plane wave, ±5 dB): 300-3,700 Hz • Low frequency limit (at full power): 300 Hz • SPL (±5 dB): 112.7 dB • Dimensions: 6-3/8" dia. x 6-7/8" D • Mfg. #PD60AT.
Constant Voltage (70-Volt) Audio Systems
Audio distribution systems, especially those commonly used in department stores, warehouses, restaurants, etc., require that many loudspeakers be driven from a single audio amplifier over long runs of speaker wire. The "constant voltage" or "high impedance distribution" audio systems can be complex to understand at first, however, provides many advantages. Learn how to design your own 70-volt or 25-volt loudspeaker system.