Model FA138 is Atlas Sound s premium 8 coaxial loudspeaker. This 100-watt unit includes a circuit board mounted high-pass/low-pass crossover which produces outstanding sound quality. Model 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 (.22ft3) with acoustic batting as well as the economy FA95-6 Series (.17ft3) 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.