Ground Zero GZCS 100BMW-SQB

Model Car specific 2-way speakers Diameter 100 mm / 3.94? Power Handling (RMS/max.) 50 / 100 Watts Impedance 3 ohms Efficiency 87 dB Frequency Response 100 Hz ? 25 kHz Voice Coil 26 mm / 1? Copper Midwoofer Pressed paper cone.