The AtlasIED FAP82T is a premium performance 70.7/100V tuned & ported 8" coaxial ceiling speaker system perfectly suited for many business music and public address applications -especially applications where high ceilings require speakers with increased efficiency and tighterpattern control. High quality construction 38mm voice coil, 8" coaxial cone type driver includes polypropylene cone with a butyl rubber surround. The 19mm coaxially mounted tweeter is constructed of PEI. sensitivity of 90dB average means less power may be required to achieve the desired SPL. This speaker is factory assembled to an optimally tuned & ported deep drawn enclosure and includes a specially designed 60 watt low saturation 70.7V/100V transformer. A convenient front mounted selector switch allows tap selection without the need to remove the speaker from the ceiling. This tap selector switch also includes a transformer bypass setting for instances where the 8 ohm FAP82T driver is to be direct coupled with a low impedance amplifier.