Speaker Size 10 cm Type 2-Way Coaxial System Max Power 230 Watt Continuous Power Output 50 W Frequency response 82 Hz – 40 kHz Sensitivity 90 dB Impedance 4 Ω Woofer material IMPP™ Composite Cone Voice Coil type Copper Voice Coil bobbin type GLASS IMIDE Cut-out Hole 106 mm Tweeter Type DOME Speaker Grill Included