Power capacity: 1400 W Peak 700 W Program 350 W Continuous * Sensitivity: 99.0 dB / 1 W 1 m * Usable freq. range: 40 Hz ~ 2 kHz * Cone: Kevlar impregnated cellulose * Voice coil material: Aluminum ribbon wire Polyimide-impregnated fiberglass former Nomex stiffener Solderless diffusion welded OFHC copper leads