Peavey 1203-4 BW 12 Inch 4 Ohm Speaker Power capacity: 1400 W Peak 700 W Program 350 W Continuous Sensitivity: 98.4 dB / 1 W 1 m Usable freq. range: 60 Hz ~ 3.5 kHz Cone: Kevlar impregnated cellulose Voice coil material: Aluminum ribbon wire Polyimide-impregnated fiberglass former Nomex stiffener Solderless diffusion welded OFHC copper leads