A full range, wide dispersion loudspeaker ideally suited to voice and background music. 8" full range speaker with whizzer cone, 12 oz. ceramic magnet, 1" aluminum voice coil. Response: 45-15,000 Hz. Includes 12" white metal grill and pre-installed 70V line-matching transformer with taps for 0.63, 1.25, 2.5, 5, and 10 watts. 2.95" depth, 12.9" O.D., 11.25" CTC mounting holes, 8.27" cutout.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.