Model no.: GS-4074System: 4" 3-way Coaxial car speakers
Woofer: Injection-molded polypropylene cone
Magnet: Ferrite 5.4 Oz
Voice coil:20 mm ASV
Surround edge: Rubber
Fre.Res.:80-22K Hz
Sensitivity:87 dB/W/m
Impedance: 4 ohms
RMS power: 15 W