Volfenhag Zx862r 6.5-Inch 450 Watt 2 Way Coaxial Car Speakers 2" polymide cone midrange freq response: 65 Hz - 20 Khz. Sensitivity: 92 dB @ 1W per 1M Butyl Rubber surrounds eliminates distortion and unwanted noises Impedance: 4 Ohms