Night Kids NKG-695 6x9-INCH Speaker System 180Watts - Night Kids NKG-695 - 6x9 inch speaker - Nominal Diameter: 6x9" Speaker - Max. Power: 180W - Frequency Response: 88Hz~22KHz - Sensitivity (1M/1W): 90dB Nominal Impedance: 4ohms - Voice Coil: 25mm ASV - Magnet: 110mm