AtlasIED FA138 8" Strategy Series Coaxial LoudspeakerThe FA138 is AtlasIED's premium 8" coaxial loudspeaker. This 100-watt unit includes a circuit board mounted high-pass/low-pass crossover which produces outstanding sound quality. The FA138 contains a reinforced polypropylene cone woofer, a custom butyl rubber surround, a 1-1/2" vented Kapton voice coil, a 21 oz. magnet and a 1/2" mylar-dome ferrofluid tweeter for clean and powerful weather-resistant performance.
For optimum acoustic and application versatility the Strategy series has been engineered as a system offering both the FA97-8 Series high performance enclosures (.22 ft3) with acoustic batting as well as the economy FA95-6 Series (.17 ft3) backbox enclosures. The enclosure front-loads the loudspeaker and installs quickly and easily into the ceiling using only a screwdriver to adjust the rotating clamps.
Loudspeakers may also be ceiling or wall mounted into areas with minimum depth by using plaster ring Model FAPR-8 instead of an enclosure. Baffle selection includes a choice of two attractive grilles which are equipped with three serrated studs for hardware-free, push-on installation into Strategy Series enclosures.
For limited depth installations when no enclosure is required mounting ring model FAPR-8 may be utilized. New construction ring model FA-TR8 is also available to serve as a pattern cut-out and location marker for drywall installers in new construction applications.
Specifications: • Depth: 3-3/4" • Diameter: 8-1/4" • Shipping weight: 5.20 lbs. (2.36 kg) • Frequency response: 75 Hz- 20 kHz (+5 dB) • Power taps: 8 ohms • Speaker type: Coaxial • Dispersion: 110° • Sensitivity: 89.5 dB 1W/1m, 93 dB Peak • UL listed/standard: 1480.
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.
Atlas Sound FA138 Installation Instructions 
California Prop 65