Impedance: 4 ohm Frequency: 216HZ - 19KHz Specifications Install Diagram Model No. PV172 3 " 2-way speaker set Woofer: Tweeter: Dimensions: Sensitivity: Nor power: Max power: Impedance: Frequency: GX17200_specification.pdf 1 4/26/11 10:15 AM 3 " Woofer 20 Buzzer tweeter 100x98x78 mm 83 dB 15 W 50 W 4 ohm 216HZ - 19KHz Install Diagram Specifications Model No.