Power handling RMS / Max 100 / 200 Watts Frequency range 40 Hz - 4,000 Hz Sensitivity 90 dB 1W / 1m Impedance 4 Ohms Diameter 165 mm / 6.5" Installation depth 67 mm / 2.64" Installation diameter 142 mm / 5.6" Cone material Glassfiber-paper compound