6.5 -inch 2-way Component Speaker with Paper Cone 158mm rubber edge paper cone woofer 43mm silk dome tweeter Frequency range: 55Hz-20KHZ Sensitivity:91dB Voice coil: dia 25mm ASV (Woofer), dia 25mm ASV(Tweeter) Impedance:4 ohms Normal power:240w Magnet: dia 100 x H45mm (20oz)(woofer)