Speaker Size 16.5 cm Type 2-Way Component System Max Power 350 Watt Continuous Power Output 80 W Frequency response 33 Hz – 58 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 144 mm Tweeter Type DOME