-140-degree wide-dispersion coaxial driver for broad even coverageStable, high definition metal-alloy woofer cone6-1/2" MDT metal-alloy cone delivers detailed sound; 3/4" polycarbonate tweeterHigh efficiency drivers deliver superior performanceComputer-matched venting system and large back can provide exceptional full bass outputFor 16-ohm, 70v, & 100V systemsComplies with UL-2043 -140-degree wide-dispersion coaxial driver for broad even coverage Stable, high definition metal-alloy woofer cone 6-1/2" MDT metal-alloy cone delivers detailed sound; 3/4" polycarbonate tweeter High efficiency drivers deliver superior performance Computer-matched venting system and large back can provide exceptional full bass output For 16-ohm, 70v, & 100V systems Complies with UL-2043